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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Mary Harrelson

Bib: 27429 •F •Age: N/A

MA

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Age Group (F18-39)
#0 / 5716
Race Day Weather
51°/41°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
23:47
3.11 mi
Rank: #14192
Start → 5K
23:47 | 7:40/mi
10K
50:13
6.21 mi
Rank: #17664 (-3472)
5K → 10K
26:26 | 8:31/mi
15K
1:19:49
9.32 mi
Rank: #20508 (-2844)
10K → 15K
29:36 | 9:32/mi
20K
1:47:50
12.43 mi
Rank: #20925 (-417)
15K → 20K
28:01 | 9:02/mi
HALF
1:53:53
13.11 mi
Rank: #20996 (-71)
20K → HALF
6:03 | 8:53/mi
25K
2:16:50
15.53 mi
Rank: #21366 (-370)
HALF → 25K
22:57 | 9:28/mi
30K
2:49:31
18.64 mi
Rank: #22165 (-799)
25K → 30K
32:41 | 10:32/mi
20M
3:02:11
20.00 mi
Rank: #22020 (+145)
30K → 20M
12:40 | 9:20/mi
21M
3:13:57
21.00 mi
Rank: #22280 (-260)
20M → 21M
11:46 | 11:46/mi
35K
3:21:19
21.75 mi
Rank: #22311 (-31)
21M → 35K
7:22 | 9:51/mi
23M
3:36:06
23.00 mi
Rank: #22640 (-329)
35K → 23M
14:47 | 11:49/mi
24M
3:46:05
24.00 mi
Rank: #22642 (-2)
23M → 24M
9:59 | 9:59/mi
40K
3:56:18
24.85 mi
Rank: #22797 (-155)
24M → 40K
10:13 | 11:57/mi
25.2M
4:00:11
25.20 mi
Rank: #22799 (-2)
40K → 25.2M
3:53 | 11:16/mi
FINISH
4:09:05
26.22 mi
Rank: #22687 (+112)
25.2M → FINISH
8:54 | 8:45/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:53:53
Pace8:42 /mi
2nd Half
Distance13.11 mi
Time2:15:12
Pace10:19 /mi
📊Positive Split: 18.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:5123:477:4023:47
7:40
-
10K
6.21 mi12:11:1750:138:0526:26
8:31
+0:51
15K
9.32 mi12:40:531:19:498:3429:36
9:32
+1:01
20K
12.43 mi13:08:541:47:508:4128:01
9:02
-0:30
HALF
13.11 mi13:14:571:53:538:426:03
8:53
-0:09
25K
15.53 mi13:37:542:16:508:4922:57
9:28
+0:35
30K
18.64 mi14:10:352:49:319:0632:41
10:32
+1:04
20M
20.00 mi14:23:153:02:119:0712:40
9:20
-1:12
21M
21.00 mi14:35:013:13:579:1511:46
11:46
+2:26
35K
21.75 mi14:42:233:21:199:167:22
9:51
-1:55
23M
23.00 mi14:57:103:36:069:2414:47
11:49
+1:58
24M
24.00 mi15:07:093:46:059:269:59
9:59
-1:50
40K
24.85 mi15:17:223:56:189:3110:13
11:57
+1:58
25.2M
25.20 mi15:21:154:00:119:323:53
11:16
-0:41
FINISH
26.22 mi15:30:094:09:059:318:54
8:45
-2:31

Checkpoint Splits Visualizations

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

📈Pace 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

7:40 /mi

Average Pace

9:30 /mi

Slowest Pace

11:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

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

1:05:10

26% of race

Time at Steady Pace

1:50:35

44% of race

Time at Slower Pace

1:13:20

29% of race

Average Pace: 9:30 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ 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 mi11:44:5123:477:4023:47
7:40
#14192
10K
6.21 mi12:11:1750:138:0526:26
8:31
#17664
15K
9.32 mi12:40:531:19:498:3429:36
9:32
#20508
20K
12.43 mi13:08:541:47:508:4128:01
9:02
#20925
HALF
13.11 mi13:14:571:53:538:426:03
8:53
#20996
25K
15.53 mi13:37:542:16:508:4922:57
9:28
#21366
30K
18.64 mi14:10:352:49:319:0632:41
10:32
#22165
20M
20.00 mi14:23:153:02:119:0712:40
9:20
#22020
21M
21.00 mi14:35:013:13:579:1511:46
11:46
#22280
35K
21.75 mi14:42:233:21:199:167:22
9:51
#22311
23M
23.00 mi14:57:103:36:069:2414:47
11:49
#22640
24M
24.00 mi15:07:093:46:059:269:59
9:59
#22642
40K
24.85 mi15:17:223:56:189:3110:13
11:57
#22797
25.2M
25.20 mi15:21:154:00:119:323:53
11:16
#22799
FINISH
26.22 mi15:30:094:09:059:318:54
8:45
#22687
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi141924196419624505(Top 84%)9922(Top 79%)9922(Top 174%)
10K6.21 mi3.10 mi17664-34726297-21016297-210120405(Top 70%)7816(Top 62%)7816(Top 137%)
15K9.32 mi3.11 mi20508-28447878-15817878-158124505(Top 84%)9922(Top 79%)9922(Top 174%)
20K12.43 mi3.11 mi20925-4178111-2338111-23321997(Top 76%)8660(Top 69%)8660(Top 152%)
HALF13.11 mi0.68 mi20996-718146-358146-3522228(Top 77%)8760(Top 70%)8760(Top 153%)
25K15.53 mi2.42 mi21366-3708354-2088354-20822921(Top 79%)9166(Top 73%)9166(Top 160%)
30K18.64 mi3.11 mi22165-7998768-4148768-41424339(Top 84%)10018(Top 80%)10018(Top 175%)
20M20.00 mi1.36 mi22020+1458704+648704+6420392(Top 70%)8028(Top 64%)8028(Top 140%)
21M21.00 mi1.00 mi22280-2608850-1468850-14624678(Top 85%)10330(Top 82%)10330(Top 181%)
35K21.75 mi0.75 mi22311-318887-378887-3722765(Top 78%)9339(Top 74%)9339(Top 163%)
23M23.00 mi1.25 mi22640-3299082-1959082-19525879(Top 89%)11009(Top 88%)11009(Top 193%)
24M24.00 mi1.00 mi22642-29098-169098-1622761(Top 78%)9419(Top 75%)9419(Top 165%)
40K24.85 mi0.85 mi22797-1559190-929190-9225813(Top 89%)11049(Top 88%)11049(Top 193%)
25.2M25.20 mi0.35 mi22799-29187+39187+323007(Top 79%)9605(Top 76%)9605(Top 168%)
FINISH26.22 mi1.02 mi22687+1129149+389149+3819373(Top 67%)7756(Top 62%)7756(Top 136%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 84%
×21
+97ft-345ft

Overall

24505

Females

9922

F18-39

9922

5K→10K

3.1 - 6.2 mi

Top 70%
×5
+79ft-138ft

Overall

20405

Females

7816

F18-39

7816

10K→15K

6.2 - 9.3 mi

Top 84%
×3
+67ft-78ft

Overall

24505

Females

9922

F18-39

9922

15K→20K

9.3 - 12.4 mi

Top 76%
×5
+106ft-86ft

Overall

21997

Females

8660

F18-39

8660

20K→HALF

12.4 - 13.1 mi

Top 77%
×2
+19ft-37ft

Overall

22228

Females

8760

F18-39

8760

HALF→25K

13.1 - 15.5 mi

Top 79%
×4
+66ft-88ft

Overall

22921

Females

9166

F18-39

9166

25K→30K

15.5 - 18.6 mi

Top 84%
×9
+181ft-148ft

Overall

24339

Females

10018

F18-39

10018

30K→20M

18.6 - 20.0 mi

Top 70%
×5
+64ft-50ft

Overall

20392

Females

8028

F18-39

8028

20M→21M

20.0 - 21.0 mi

Top 85%
×8
+106ft-24ft

Overall

24678

Females

10330

F18-39

10330

21M→35K

21.0 - 21.8 mi

Top 78%
×7
+17ft-86ft

Overall

22765

Females

9339

F18-39

9339

35K→23M

21.8 - 23.0 mi

Top 89%
×5
+23ft-63ft

Overall

25879

Females

11009

F18-39

11009

23M→24M

23.0 - 24.0 mi

Top 78%
×6
+12ft-82ft

Overall

22761

Females

9419

F18-39

9419

24M→40K

24.0 - 24.9 mi

Top 89%
×1
+6ft-20ft

Overall

25813

Females

11049

F18-39

11049

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1
+13ft-16ft

Overall

23007

Females

9605

F18-39

9605

25.2M→FINISH

25.2 - 26.2 mi

Top 67%
×2
+22ft-21ft

Overall

19373

Females

7756

F18-39

7756

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
619
Passed By
1825
Net Change
-8495
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14192
5K → 10K6200-3472#14192#17664
10K → 15K2200-2844#17664#20508
15K → 20K79200-417#20508#20925
20K → HALF1081-71#20925#20996
HALF → 25K43200-370#20996#21366
25K → 30K35200-799#21366#22165
30K → 20M16419+145#22165#22020
20M → 21M21200-260#22020#22280
21M → 35K4374-31#22280#22311
35K → 23M12200-329#22311#22640
23M → 24M4951-2#22640#22642
24M → 40K20175-155#22642#22797
40K → 25.2M1820-2#22797#22799
25.2M → FINISH1175+112#22799#22687
TOTALS6191825-8495
📊

Passing Analysis Visualizations

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

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race 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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