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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Jennifer Mastaw

Bib: 23573 β€’F β€’Age: N/A

MI

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Age Group (F50-54)
#0 / 1233
Race Day Weather
51Β°/41Β°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
29:58
3.11 mi
Rank: #24927
Start β†’ 5K
29:58 | 9:39/mi
10K
59:24
6.21 mi
Rank: #24696 (+231)
5K β†’ 10K
29:26 | 9:29/mi
15K
1:28:23
9.32 mi
Rank: #24447 (+249)
10K β†’ 15K
28:59 | 9:20/mi
20K
1:57:18
12.43 mi
Rank: #24136 (+311)
15K β†’ 20K
28:55 | 9:19/mi
HALF
2:03:41
13.11 mi
Rank: #24119 (+17)
20K β†’ HALF
6:23 | 9:22/mi
25K
2:26:25
15.53 mi
Rank: #23866 (+253)
HALF β†’ 25K
22:44 | 9:23/mi
30K
2:55:52
18.64 mi
Rank: #23445 (+421)
25K β†’ 30K
29:27 | 9:29/mi
20M
3:08:45
20.00 mi
Rank: #23250 (+195)
30K β†’ 20M
12:53 | 9:30/mi
21M
3:18:19
21.00 mi
Rank: #22997 (+253)
20M β†’ 21M
9:34 | 9:34/mi
35K
3:24:58
21.75 mi
Rank: #22874 (+123)
21M β†’ 35K
6:39 | 8:54/mi
23M
3:36:26
23.00 mi
Rank: #22692 (+182)
35K β†’ 23M
11:28 | 9:10/mi
24M
3:45:17
24.00 mi
Rank: #22532 (+160)
23M β†’ 24M
8:51 | 8:51/mi
40K
3:52:54
24.85 mi
Rank: #22372 (+160)
24M β†’ 40K
7:37 | 8:55/mi
25.2M
3:56:08
25.20 mi
Rank: #22301 (+71)
40K β†’ 25.2M
3:14 | 9:23/mi
FINISH
4:04:42
26.22 mi
Rank: #22161 (+140)
25.2M β†’ FINISH
8:34 | 8:25/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via HALF
Distance13.11 mi
Time2:03:41
Pace9:27 /mi
2nd Halfβœ“ Faster
Distance13.11 mi
Time2:01:01
Pace9:14 /mi
πŸ“ŠNegative Split: 2.2% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:33:0929:589:3929:58
9:39
-
10K
6.21 mi12:02:3559:249:3429:26
9:29
-0:10
15K
9.32 mi12:31:341:28:239:2928:59
9:20
-0:09
20K
12.43 mi13:00:291:57:189:2728:55
9:19
-0:01
HALF
13.11 mi13:06:522:03:419:276:23
9:22
+0:03
25K
15.53 mi13:29:362:26:259:2622:44
9:23
+0:01
30K
18.64 mi13:59:032:55:529:2729:27
9:29
+0:06
20M
20.00 mi14:11:563:08:459:2712:53
9:30
+0:01
21M
21.00 mi14:21:303:18:199:279:34
9:34
+0:04
35K
21.75 mi14:28:093:24:589:266:39
8:54
-0:40
23M
23.00 mi14:39:373:36:269:2511:28
9:10
+0:16
24M
24.00 mi14:48:283:45:179:248:51
8:51
-0:19
40K
24.85 mi14:56:053:52:549:237:37
8:55
+0:04
25.2M
25.20 mi14:59:193:56:089:233:14
9:23
+0:28
FINISH
26.22 mi15:07:534:04:429:218:34
8:25
-0:58

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

πŸ“ˆPace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

8:25 /mi

Average Pace

9:20 /mi

Slowest Pace

9:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

43:09

18% of race

Time at Steady Pace

3:21:33

82% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:20 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:33:0929:589:3929:58
9:39
#24927
10K
6.21 mi12:02:3559:249:3429:26
9:29
#24696
15K
9.32 mi12:31:341:28:239:2928:59
9:20
#24447
20K
12.43 mi13:00:291:57:189:2728:55
9:19
#24136
HALF
13.11 mi13:06:522:03:419:276:23
9:22
#24119
25K
15.53 mi13:29:362:26:259:2622:44
9:23
#23866
30K
18.64 mi13:59:032:55:529:2729:27
9:29
#23445
20M
20.00 mi14:11:563:08:459:2712:53
9:30
#23250
21M
21.00 mi14:21:303:18:199:279:34
9:34
#22997
35K
21.75 mi14:28:093:24:589:266:39
8:54
#22874
23M
23.00 mi14:39:373:36:269:2511:28
9:10
#22692
24M
24.00 mi14:48:283:45:179:248:51
8:51
#22532
40K
24.85 mi14:56:053:52:549:237:37
8:55
#22372
25.2M
25.20 mi14:59:193:56:089:233:14
9:23
#22301
FINISH
26.22 mi15:07:534:04:429:218:34
8:25
#22161
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi24927101401014023932(Top 82%)9616(Top 76%)9616(Top 780%)
10K6.21 mi3.10 mi24696+23110024+11610024+11624508(Top 84%)9918(Top 79%)9918(Top 804%)
15K9.32 mi3.11 mi24447+2499878+1469878+14623932(Top 82%)9616(Top 76%)9616(Top 780%)
20K12.43 mi3.11 mi24136+3119723+1559723+15523164(Top 80%)9262(Top 74%)9262(Top 751%)
HALF13.11 mi0.68 mi24119+179712+119712+1123992(Top 83%)9678(Top 77%)9678(Top 785%)
25K15.53 mi2.42 mi23866+2539599+1139599+11322639(Top 78%)9005(Top 72%)9005(Top 730%)
30K18.64 mi3.11 mi23445+4219442+1579442+15721564(Top 74%)8553(Top 68%)8553(Top 694%)
20M20.00 mi1.36 mi23250+1959359+839359+8321017(Top 72%)8359(Top 66%)8359(Top 678%)
21M21.00 mi1.00 mi22997+2539237+1229237+12218843(Top 65%)7255(Top 58%)7255(Top 588%)
35K21.75 mi0.75 mi22874+1239179+589179+5819620(Top 68%)7778(Top 62%)7778(Top 631%)
23M23.00 mi1.25 mi22692+1829111+689111+6819300(Top 67%)7634(Top 61%)7634(Top 619%)
24M24.00 mi1.00 mi22532+1609037+749037+7418820(Top 65%)7435(Top 59%)7435(Top 603%)
40K24.85 mi0.85 mi22372+1608964+738964+7318001(Top 62%)7049(Top 56%)7049(Top 572%)
25.2M25.20 mi0.35 mi22301+718931+338931+3316837(Top 58%)6443(Top 51%)6443(Top 523%)
FINISH26.22 mi1.02 mi22161+1408872+598872+5917697(Top 61%)6898(Top 55%)6898(Top 559%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
Γ—21
+97ft-345ft

Overall

23932

Females

9616

F50-54

9616

5K→10K

3.1 - 6.2 mi

Top 84%
Γ—5
+79ft-138ft

Overall

24508

Females

9918

F50-54

9918

10K→15K

6.2 - 9.3 mi

Top 82%
Γ—3
+67ft-78ft

Overall

23932

Females

9616

F50-54

9616

15K→20K

9.3 - 12.4 mi

Top 80%
Γ—5
+106ft-86ft

Overall

23164

Females

9262

F50-54

9262

20K→HALF

12.4 - 13.1 mi

Top 83%
Γ—2
+19ft-37ft

Overall

23992

Females

9678

F50-54

9678

HALF→25K

13.1 - 15.5 mi

Top 78%
Γ—4
+66ft-88ft

Overall

22639

Females

9005

F50-54

9005

25K→30K

15.5 - 18.6 mi

Top 74%
Γ—9
+181ft-148ft

Overall

21564

Females

8553

F50-54

8553

30K→20M

18.6 - 20.0 mi

Top 72%
Γ—5
+64ft-50ft

Overall

21017

Females

8359

F50-54

8359

20M→21M

20.0 - 21.0 mi

Top 65%
Γ—8
+106ft-24ft

Overall

18843

Females

7255

F50-54

7255

21M→35K

21.0 - 21.8 mi

Top 68%
Γ—7
+17ft-86ft

Overall

19620

Females

7778

F50-54

7778

35K→23M

21.8 - 23.0 mi

Top 67%
Γ—5
+23ft-63ft

Overall

19300

Females

7634

F50-54

7634

23M→24M

23.0 - 24.0 mi

Top 65%
Γ—6
+12ft-82ft

Overall

18820

Females

7435

F50-54

7435

24M→40K

24.0 - 24.9 mi

Top 62%
Γ—1
+6ft-20ft

Overall

18001

Females

7049

F50-54

7049

40K→25.2M

24.9 - 25.2 mi

Top 58%
Γ—1
+13ft-16ft

Overall

16837

Females

6443

F50-54

6443

25.2M→FINISH

25.2 - 26.2 mi

Top 61%
Γ—2
+22ft-21ft

Overall

17697

Females

6898

F50-54

6898

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3011*
Passed By
245
Net Change
+2766
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#24927
5K β†’ 10K355*124+231#24927#24696
10K β†’ 15K287*38+249#24696#24447
15K β†’ 20K325*14+311#24447#24136
20K β†’ HALF3821+17#24136#24119
HALF β†’ 25K270*17+253#24119#23866
25K β†’ 30K433*12+421#23866#23445
30K β†’ 20M2005+195#23445#23250
20M β†’ 21M254*1+253#23250#22997
21M β†’ 35K1285+123#22997#22874
35K β†’ 23M1853+182#22874#22692
23M β†’ 24M1644+160#22692#22532
24M β†’ 40K1600+160#22532#22372
40K β†’ 25.2M710+71#22372#22301
25.2M β†’ FINISH1411+140#22301#22161
TOTALS3011*245+2766

* Includes athletes who did not complete a segment (DNF/DNQ).

πŸ“Š

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

πŸ“ˆPosition Graph

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🎨Heatmap Timeline

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πŸ”„Passing Circle

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🌊Position Flow

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πŸƒRace Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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