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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing
BOSTON MARATHON 2026

Lauren Bonaca

Bib: 29412 •F •Age: N/A

CO

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 (F45-49)
#0 / 1786
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
28:36
3.11 mi
Rank: #23485
Start → 5K
28:36 | 9:13/mi
10K
56:08
6.21 mi
Rank: #22894 (+591)
5K → 10K
27:32 | 8:52/mi
15K
1:23:36
9.32 mi
Rank: #22598 (+296)
10K → 15K
27:28 | 8:51/mi
20K
1:51:27
12.43 mi
Rank: #22345 (+253)
15K → 20K
27:51 | 8:58/mi
HALF
1:57:30
13.11 mi
Rank: #22330 (+15)
20K → HALF
6:03 | 8:53/mi
25K
2:19:33
15.53 mi
Rank: #22185 (+145)
HALF → 25K
22:03 | 9:06/mi
30K
2:49:03
18.64 mi
Rank: #22057 (+128)
25K → 30K
29:30 | 9:30/mi
20M
3:02:00
20.00 mi
Rank: #21991 (+66)
30K → 20M
12:57 | 9:33/mi
21M
3:12:20
21.00 mi
Rank: #21945 (+46)
20M → 21M
10:20 | 10:20/mi
35K
3:20:17
21.75 mi
Rank: #22106 (-161)
21M → 35K
7:57 | 10:38/mi
23M
3:36:14
23.00 mi
Rank: #22662 (-556)
35K → 23M
15:57 | 12:45/mi
24M
3:48:38
24.00 mi
Rank: #22968 (-306)
23M → 24M
12:24 | 12:24/mi
40K
3:57:49
24.85 mi
Rank: #22989 (-21)
24M → 40K
9:11 | 10:45/mi
25.2M
4:01:37
25.20 mi
Rank: #22973 (+16)
40K → 25.2M
3:48 | 11:02/mi
FINISH
4:11:44
26.22 mi
Rank: #22989 (-16)
25.2M → FINISH
10:07 | 9:56/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
Time1:57:30
Pace8:58 /mi
2nd Half
Distance13.11 mi
Time2:14:14
Pace10:15 /mi
📊Positive Split: 14.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:0128:369:1328:36
9:13
-
10K
6.21 mi12:20:3356:089:0327:32
8:52
-0:21
15K
9.32 mi12:48:011:23:368:5927:28
8:51
-0:01
20K
12.43 mi13:15:521:51:278:5927:51
8:58
+0:07
HALF
13.11 mi13:21:551:57:308:586:03
8:53
-0:05
25K
15.53 mi13:43:582:19:339:0022:03
9:06
+0:13
30K
18.64 mi14:13:282:49:039:0529:30
9:30
+0:24
20M
20.00 mi14:26:253:02:009:0712:57
9:33
+0:03
21M
21.00 mi14:36:453:12:209:1010:20
10:20
+0:47
35K
21.75 mi14:44:423:20:179:137:57
10:38
+0:18
23M
23.00 mi15:00:393:36:149:2515:57
12:45
+2:07
24M
24.00 mi15:13:033:48:389:3212:24
12:24
-0:21
40K
24.85 mi15:22:143:57:499:359:11
10:45
-1:39
25.2M
25.20 mi15:26:024:01:379:363:48
11:02
+0:17
FINISH
26.22 mi15:36:094:11:449:3710:07
9:56
-1:06

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

8:51 /mi

Average Pace

9:36 /mi

Slowest Pace

12:45 /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

1:01:03

24% of race

Time at Steady Pace

2:11:04

52% of race

Time at Slower Pace

59:37

24% of race

Average Pace: 9:36 /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 mi11:53:0128:369:1328:36
9:13
#23485
10K
6.21 mi12:20:3356:089:0327:32
8:52
#22894
15K
9.32 mi12:48:011:23:368:5927:28
8:51
#22598
20K
12.43 mi13:15:521:51:278:5927:51
8:58
#22345
HALF
13.11 mi13:21:551:57:308:586:03
8:53
#22330
25K
15.53 mi13:43:582:19:339:0022:03
9:06
#22185
30K
18.64 mi14:13:282:49:039:0529:30
9:30
#22057
20M
20.00 mi14:26:253:02:009:0712:57
9:33
#21991
21M
21.00 mi14:36:453:12:209:1010:20
10:20
#21945
35K
21.75 mi14:44:423:20:179:137:57
10:38
#22106
23M
23.00 mi15:00:393:36:149:2515:57
12:45
#22662
24M
24.00 mi15:13:033:48:389:3212:24
12:24
#22968
40K
24.85 mi15:22:143:57:499:359:11
10:45
#22989
25.2M
25.20 mi15:26:024:01:379:363:48
11:02
#22973
FINISH
26.22 mi15:36:094:11:449:3710:07
9:56
#22989
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi234859416941621949(Top 76%)8618(Top 69%)8618(Top 483%)
10K6.21 mi3.10 mi22894+5919104+3129104+31222233(Top 77%)8778(Top 70%)8778(Top 491%)
15K9.32 mi3.11 mi22598+2968953+1518953+15121949(Top 76%)8618(Top 69%)8618(Top 483%)
20K12.43 mi3.11 mi22345+2538828+1258828+12521786(Top 75%)8555(Top 68%)8555(Top 479%)
HALF13.11 mi0.68 mi22330+158825+38825+322235(Top 77%)8767(Top 70%)8767(Top 491%)
25K15.53 mi2.42 mi22185+1458752+738752+7321604(Top 74%)8480(Top 67%)8480(Top 475%)
30K18.64 mi3.11 mi22057+1288717+358717+3521638(Top 75%)8593(Top 68%)8593(Top 481%)
20M20.00 mi1.36 mi21991+668690+278690+2721198(Top 73%)8454(Top 67%)8454(Top 473%)
21M21.00 mi1.00 mi21945+468685+58685+521516(Top 74%)8646(Top 69%)8646(Top 484%)
35K21.75 mi0.75 mi22106-1618774-898774-8924555(Top 85%)10285(Top 82%)10285(Top 576%)
23M23.00 mi1.25 mi22662-5569096-3229096-32227063(Top 93%)11616(Top 92%)11616(Top 650%)
24M24.00 mi1.00 mi22968-3069255-1599255-15927074(Top 93%)11660(Top 93%)11660(Top 653%)
40K24.85 mi0.85 mi22989-219272-179272-1723749(Top 82%)9996(Top 79%)9996(Top 560%)
25.2M25.20 mi0.35 mi22973+169273-19273-122441(Top 77%)9311(Top 74%)9311(Top 521%)
FINISH26.22 mi1.02 mi22989-169285-129285-1223636(Top 81%)9933(Top 79%)9933(Top 556%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21
+97ft-345ft

Overall

21949

Females

8618

F45-49

8618

5K→10K

3.1 - 6.2 mi

Top 77%
×5
+79ft-138ft

Overall

22233

Females

8778

F45-49

8778

10K→15K

6.2 - 9.3 mi

Top 76%
×3
+67ft-78ft

Overall

21949

Females

8618

F45-49

8618

15K→20K

9.3 - 12.4 mi

Top 75%
×5
+106ft-86ft

Overall

21786

Females

8555

F45-49

8555

20K→HALF

12.4 - 13.1 mi

Top 77%
×2
+19ft-37ft

Overall

22235

Females

8767

F45-49

8767

HALF→25K

13.1 - 15.5 mi

Top 74%
×4
+66ft-88ft

Overall

21604

Females

8480

F45-49

8480

25K→30K

15.5 - 18.6 mi

Top 75%
×9
+181ft-148ft

Overall

21638

Females

8593

F45-49

8593

30K→20M

18.6 - 20.0 mi

Top 73%
×5
+64ft-50ft

Overall

21198

Females

8454

F45-49

8454

20M→21M

20.0 - 21.0 mi

Top 74%
×8
+106ft-24ft

Overall

21516

Females

8646

F45-49

8646

21M→35K

21.0 - 21.8 mi

Top 85%
×7
+17ft-86ft

Overall

24555

Females

10285

F45-49

10285

35K→23M

21.8 - 23.0 mi

Top 93%
×5
+23ft-63ft

Overall

27063

Females

11616

F45-49

11616

23M→24M

23.0 - 24.0 mi

Top 93%
×6
+12ft-82ft

Overall

27074

Females

11660

F45-49

11660

24M→40K

24.0 - 24.9 mi

Top 82%
×1
+6ft-20ft

Overall

23749

Females

9996

F45-49

9996

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1
+13ft-16ft

Overall

22441

Females

9311

F45-49

9311

25.2M→FINISH

25.2 - 26.2 mi

Top 81%
×2
+22ft-21ft

Overall

23636

Females

9933

F45-49

9933

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2106*
Passed By
1136
Net Change
+496
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23485
5K → 10K644*53+591#23485#22894
10K → 15K350*54+296#22894#22598
15K → 20K310*57+253#22598#22345
20K → HALF4025+15#22345#22330
HALF → 25K19954+145#22330#22185
25K → 30K224*96+128#22185#22057
30K → 20M11145+66#22057#21991
20M → 21M10761+46#21991#21945
21M → 35K14175-161#21945#22106
35K → 23M9200-556#22106#22662
23M → 24M3200-306#22662#22968
24M → 40K2849-21#22968#22989
40K → 25.2M3216+16#22989#22973
25.2M → FINISH3551-16#22973#22989
TOTALS2106*1136+496

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

📊

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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