Boston Marathon logo
BOSTON MARATHON 2025

Bailey Otto

Bib: 29467•F

GA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
32:19
Rank: #26537
Start → 5K
32:19 | 10:24/mi
10K· 6.21 mi
1:05:57
Rank: #26701 (-164)
5K → 10K
33:38 | 10:50/mi
15K· 9.32 mi
1:39:29
Rank: #26588 (+113)
10K → 15K
33:32 | 10:48/mi
20K· 12.43 mi
2:12:20
Rank: #26242 (+346)
15K → 20K
32:51 | 10:34/mi
Half· 13.11 mi
2:19:14
Rank: #26172 (+70)
20K → Half
6:54 | 10:07/mi
25K· 15.53 mi
2:45:37
Rank: #25981 (+191)
Half → 25K
26:23 | 10:53/mi
30K· 18.64 mi
3:23:19
Rank: #25920 (+61)
25K → 30K
37:42 | 12:08/mi
20M
3:38:22
Rank: #25771 (+149)
30K → 20M
15:03 | 11:04/mi
21M
3:49:44
Rank: #25606 (+165)
20M → 21M
11:22 | 11:22/mi
35K· 21.75 mi
3:57:55
Rank: #25565 (+41)
21M → 35K
8:11 | 10:56/mi
23M
4:11:44
Rank: #25468 (+97)
35K → 23M
13:49 | 11:02/mi
24M
4:22:50
Rank: #25421 (+47)
23M → 24M
11:06 | 11:06/mi
40K· 24.85 mi
4:32:39
Rank: #25378 (+43)
24M → 40K
9:49 | 11:29/mi
25.2M
4:36:46
Rank: #25350 (+28)
40K → 25.2M
4:07 | 11:56/mi
Finish· 26.22 mi
4:46:45
Rank: #25280 (+70)
25.2M → Finish
9:59 | 9:48/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:19:14
Pace10:37 /mi
2nd Half
Distance13.11 mi
Time2:27:31
Pace11:15 /mi
📊Positive Split: 5.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:4932:1910:2432:19
10:24
-
10K
6.21 mi12:28:271:05:5710:3733:38
10:50
+0:26
15K
9.32 mi13:01:591:39:2910:4033:32
10:48
-0:02
20K
12.43 mi13:34:502:12:2010:3932:51
10:34
-0:14
Half
13.11 mi13:41:442:19:1410:376:54
10:07
-0:27
25K
15.53 mi14:08:072:45:3710:4026:23
10:53
+0:46
30K
18.64 mi14:45:493:23:1910:5437:42
12:08
+1:15
20M
20.00 mi15:00:523:38:2210:5515:03
11:04
-1:04
21M
21.00 mi15:12:143:49:4410:5611:22
11:22
+0:18
35K
21.75 mi15:20:253:57:5510:568:11
10:56
-0:26
23M
23.00 mi15:34:144:11:4410:5713:49
11:02
+0:06
24M
24.00 mi15:45:204:22:5010:5711:06
11:06
+0:04
40K
24.85 mi15:55:094:32:3910:589:49
11:29
+0:23
25.2M
25.20 mi15:59:164:36:4610:594:07
11:56
+0:27
Finish
26.22 mi16:09:154:46:4510:579:59
9:48
-2:08

Checkpoints & Pacing

📈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

9:48 /mi

Average Pace

10:57 /mi

Slowest Pace

12:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:22:03

29% of race

Time at Steady Pace

2:21:42

49% of race

Time at Slower Pace

1:03:00

22% of race

Average Pace: 10:56 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:54:4932:1910:2432:19
10:24
#26537
10K
6.21 mi12:28:271:05:5710:3733:38
10:50
#26701
15K
9.32 mi13:01:591:39:2910:4033:32
10:48
#26588
20K
12.43 mi13:34:502:12:2010:3932:51
10:34
#26242
Half
13.11 mi13:41:442:19:1410:376:54
10:07
#26172
25K
15.53 mi14:08:072:45:3710:4026:23
10:53
#25981
30K
18.64 mi14:45:493:23:1910:5437:42
12:08
#25920
20M
20.00 mi15:00:523:38:2210:5515:03
11:04
#25771
21M
21.00 mi15:12:143:49:4410:5611:22
11:22
#25606
35K
21.75 mi15:20:253:57:5510:568:11
10:56
#25565
23M
23.00 mi15:34:144:11:4410:5713:49
11:02
#25468
24M
24.00 mi15:45:204:22:5010:5711:06
11:06
#25421
40K
24.85 mi15:55:094:32:3910:589:49
11:29
#25378
25.2M
25.20 mi15:59:164:36:4610:594:07
11:56
#25350
Finish
26.22 mi16:09:154:46:4510:579:59
9:48
#25280
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26537110621106226395(Top 93%)10999(Top 90%)10999(Top 201%)
10K6.21 mi3.10 mi26701-16411161-9911161-9926808(Top 94%)11242(Top 92%)11242(Top 206%)
15K9.32 mi3.11 mi26588+11311108+5311108+5326395(Top 93%)10999(Top 90%)10999(Top 201%)
20K12.43 mi3.11 mi26242+34610912+19610912+19625316(Top 89%)10437(Top 85%)10437(Top 191%)
Half13.11 mi0.68 mi26172+7010877+3510877+3525040(Top 88%)10287(Top 84%)10287(Top 188%)
25K15.53 mi2.42 mi25981+19110786+9110786+9125018(Top 88%)10299(Top 84%)10299(Top 188%)
30K18.64 mi3.11 mi25920+6110781+510781+525745(Top 91%)10812(Top 88%)10812(Top 198%)
20M20.00 mi1.36 mi25771+14910719+6210719+6223731(Top 84%)9813(Top 80%)9813(Top 179%)
21M21.00 mi1.00 mi25606+16510641+7810641+7822290(Top 78%)9133(Top 75%)9133(Top 167%)
35K21.75 mi0.75 mi25565+4110625+1610625+1624053(Top 85%)10093(Top 83%)10093(Top 185%)
23M23.00 mi1.25 mi25468+9710593+3210593+3223288(Top 82%)9762(Top 80%)9762(Top 178%)
24M24.00 mi1.00 mi25421+4710573+2010573+2024171(Top 85%)10207(Top 83%)10207(Top 187%)
40K24.85 mi0.85 mi25378+4310556+1710556+1724081(Top 85%)10208(Top 83%)10208(Top 187%)
25.2M25.20 mi0.35 mi25350+2810538+1810538+1823047(Top 81%)9690(Top 79%)9690(Top 177%)
Finish26.22 mi1.02 mi25280+7010508+3010508+3022241(Top 78%)9296(Top 76%)9296(Top 170%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 93%
×21stories
+97ft-345ft

Overall

26395

Females

10999

F18-39

10999

5K→10K

3.1 - 6.2 mi

Top 94%
×5stories
+79ft-138ft

Overall

26808

Females

11242

F18-39

11242

10K→15K

6.2 - 9.3 mi

Top 93%
×3stories
+67ft-78ft

Overall

26395

Females

10999

F18-39

10999

15K→20K

9.3 - 12.4 mi

Top 89%
×5stories
+106ft-86ft

Overall

25316

Females

10437

F18-39

10437

20K→Half

12.4 - 13.1 mi

Top 88%
×2stories
+19ft-37ft

Overall

25040

Females

10287

F18-39

10287

Half→25K

13.1 - 15.5 mi

Top 88%
×4stories
+66ft-88ft

Overall

25018

Females

10299

F18-39

10299

25K→30K

15.5 - 18.6 mi

Top 91%
×9stories
+181ft-148ft

Overall

25745

Females

10812

F18-39

10812

30K→20M

18.6 - 20.0 mi

Top 84%
×5stories
+64ft-50ft

Overall

23731

Females

9813

F18-39

9813

20M→21M

20.0 - 21.0 mi

Top 78%
×8stories
+106ft-24ft

Overall

22290

Females

9133

F18-39

9133

21M→35K

21.0 - 21.8 mi

Top 85%
×7stories
+17ft-86ft

Overall

24053

Females

10093

F18-39

10093

35K→23M

21.8 - 23.0 mi

Top 82%
×5stories
+23ft-63ft

Overall

23288

Females

9762

F18-39

9762

23M→24M

23.0 - 24.0 mi

Top 85%
×6stories
+12ft-82ft

Overall

24171

Females

10207

F18-39

10207

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

24081

Females

10208

F18-39

10208

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

23047

Females

9690

F18-39

9690

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2stories
+22ft-21ft

Overall

22241

Females

9296

F18-39

9296

Passing Analysis

Category:
Athletes Passed
1748
Passed By
491
Net Change
+1257
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26537
5K → 10K110274-164#26537#26701
10K → 15K17158+113#26701#26588
15K → 20K3515+346#26588#26242
20K → Half711+70#26242#26172
Half → 25K20514+191#26172#25981
25K → 30K13473+61#25981#25920
30K → 20M1523+149#25920#25771
20M → 21M1672+165#25771#25606
21M → 35K5514+41#25606#25565
35K → 23M10710+97#25565#25468
23M → 24M6518+47#25468#25421
24M → 40K529+43#25421#25378
40K → 25.2M335+28#25378#25350
25.2M → Finish755+70#25350#25280
TOTALS1748491+1257
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing