Boston Marathon logo
BOSTON MARATHON 2025

Bayli Tucker

Bib: 28141•F

CA

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
32:42
Rank: #26826
Start → 5K
10:32/mi
32:42 split
10K· 6.21 mi
1:04:29
Rank: #26242 (+584)
5K → 10K
10:14/mi
31:47 split
15K· 9.32 mi
1:35:27
Rank: #25802 (+440)
10K → 15K
9:58/mi
30:58 split
20K· 12.43 mi
2:06:20
Rank: #25366 (+436)
15K → 20K
9:56/mi
30:53 split
Half· 13.11 mi
2:13:16
Rank: #25347 (+19)
20K → Half
10:10/mi
6:56 split
25K· 15.53 mi
2:37:20
Rank: #24978 (+369)
Half → 25K
9:56/mi
24:04 split
30K· 18.64 mi
3:10:52
Rank: #24730 (+248)
25K → 30K
10:48/mi
33:32 split
20M
3:24:28
Rank: #24538 (+192)
30K → 20M
10:00/mi
13:36 split
21M
3:34:50
Rank: #24306 (+232)
20M → 21M
10:22/mi
10:22 split
35K· 21.75 mi
3:42:16
Rank: #24221 (+85)
21M → 35K
9:56/mi
7:26 split
23M
3:55:03
Rank: #24047 (+174)
35K → 23M
10:13/mi
12:47 split
24M
4:06:19
Rank: #24076 (-29)
23M → 24M
11:16/mi
11:16 split
40K· 24.85 mi
4:14:40
Rank: #23945 (+131)
24M → 40K
9:46/mi
8:21 split
25.2M
4:18:41
Rank: #23923 (+22)
40K → 25.2M
11:39/mi
4:01 split
Finish· 26.22 mi
4:27:50
Rank: #23798 (+125)
25.2M → Finish
8:59/mi
9:09 split

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 Half⚖️ Balanced
Distance13.11 mi
Time2:13:16
Pace10:10 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time2:14:34
Pace10:16 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:58:2432:4210:3232:42
10:32
-
10K
6.21 mi12:30:111:04:2910:2331:47
10:14
-0:18
15K
9.32 mi13:01:091:35:2710:1430:58
9:58
-0:16
20K
12.43 mi13:32:022:06:2010:1030:53
9:56
-0:02
Half
13.11 mi13:38:582:13:1610:106:56
10:10
+0:14
25K
15.53 mi14:03:022:37:2010:0824:04
9:56
-0:14
30K
18.64 mi14:36:343:10:5210:1433:32
10:48
+0:52
20M
20.00 mi14:50:103:24:2810:1313:36
10:00
-0:48
21M
21.00 mi15:00:323:34:5010:1410:22
10:22
+0:22
35K
21.75 mi15:07:583:42:1610:137:26
9:56
-0:26
23M
23.00 mi15:20:453:55:0310:1312:47
10:13
+0:17
24M
24.00 mi15:32:014:06:1910:1611:16
11:16
+1:03
40K
24.85 mi15:40:224:14:4010:158:21
9:46
-1:30
25.2M
25.20 mi15:44:234:18:4110:164:01
11:39
+1:53
Finish
26.22 mi15:53:324:27:5010:139:09
8:59
-2:40

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

8:59 /mi

Average Pace

10:13 /mi

Slowest Pace

11:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

17:30

7% of race

Time at Steady Pace

2:48:49

63% of race

Time at Slower Pace

1:21:31

30% of race

Average Pace: 10:13 /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 mi11:58:2432:4210:3232:42
10:32
#26826
10K
6.21 mi12:30:111:04:2910:2331:47
10:14
#26242
15K
9.32 mi13:01:091:35:2710:1430:58
9:58
#25802
20K
12.43 mi13:32:022:06:2010:1030:53
9:56
#25366
Half
13.11 mi13:38:582:13:1610:106:56
10:10
#25347
25K
15.53 mi14:03:022:37:2010:0824:04
9:56
#24978
30K
18.64 mi14:36:343:10:5210:1433:32
10:48
#24730
20M
20.00 mi14:50:103:24:2810:1313:36
10:00
#24538
21M
21.00 mi15:00:323:34:5010:1410:22
10:22
#24306
35K
21.75 mi15:07:583:42:1610:137:26
9:56
#24221
23M
23.00 mi15:20:453:55:0310:1312:47
10:13
#24047
24M
24.00 mi15:32:014:06:1910:1611:16
11:16
#24076
40K
24.85 mi15:40:224:14:4010:158:21
9:46
#23945
25.2M
25.20 mi15:44:234:18:4110:164:01
11:39
#23923
Finish
26.22 mi15:53:324:27:5010:139:09
8:59
#23798
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26826112231122324933(Top 88%)10176(Top 83%)10176(Top 186%)
10K6.21 mi3.10 mi26242+58410903+32010903+32025793(Top 91%)10682(Top 87%)10682(Top 195%)
15K9.32 mi3.11 mi25802+44010669+23410669+23424933(Top 88%)10176(Top 83%)10176(Top 186%)
20K12.43 mi3.11 mi25366+43610443+22610443+22624113(Top 85%)9774(Top 80%)9774(Top 179%)
Half13.11 mi0.68 mi25347+1910431+1210431+1225186(Top 89%)10362(Top 85%)10362(Top 189%)
25K15.53 mi2.42 mi24978+36910235+19610235+19623075(Top 81%)9234(Top 76%)9234(Top 169%)
30K18.64 mi3.11 mi24730+24810132+10310132+10323598(Top 83%)9655(Top 79%)9655(Top 177%)
20M20.00 mi1.36 mi24538+19210034+9810034+9820990(Top 74%)8358(Top 68%)8358(Top 153%)
21M21.00 mi1.00 mi24306+2329934+1009934+10019627(Top 69%)7704(Top 63%)7704(Top 141%)
35K21.75 mi0.75 mi24221+859899+359899+3521749(Top 77%)8907(Top 73%)8907(Top 163%)
23M23.00 mi1.25 mi24047+1749820+799820+7921174(Top 75%)8648(Top 71%)8648(Top 158%)
24M24.00 mi1.00 mi24076-299855-359855-3524507(Top 86%)10386(Top 85%)10386(Top 190%)
40K24.85 mi0.85 mi23945+1319792+639792+6319733(Top 69%)8019(Top 66%)8019(Top 147%)
25.2M25.20 mi0.35 mi23923+229785+79785+722481(Top 79%)9404(Top 77%)9404(Top 172%)
Finish26.22 mi1.02 mi23798+1259735+509735+5018971(Top 67%)7592(Top 62%)7592(Top 139%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21stories
+97ft-345ft

Overall

24933

Females

10176

F18-39

10176

5K→10K

3.1 - 6.2 mi

Top 91%
×5stories
+79ft-138ft

Overall

25793

Females

10682

F18-39

10682

10K→15K

6.2 - 9.3 mi

Top 88%
×3stories
+67ft-78ft

Overall

24933

Females

10176

F18-39

10176

15K→20K

9.3 - 12.4 mi

Top 85%
×5stories
+106ft-86ft

Overall

24113

Females

9774

F18-39

9774

20K→Half

12.4 - 13.1 mi

Top 89%
×2stories
+19ft-37ft

Overall

25186

Females

10362

F18-39

10362

Half→25K

13.1 - 15.5 mi

Top 81%
×4stories
+66ft-88ft

Overall

23075

Females

9234

F18-39

9234

25K→30K

15.5 - 18.6 mi

Top 83%
×9stories
+181ft-148ft

Overall

23598

Females

9655

F18-39

9655

30K→20M

18.6 - 20.0 mi

Top 74%
×5stories
+64ft-50ft

Overall

20990

Females

8358

F18-39

8358

20M→21M

20.0 - 21.0 mi

Top 69%
×8stories
+106ft-24ft

Overall

19627

Females

7704

F18-39

7704

21M→35K

21.0 - 21.8 mi

Top 77%
×7stories
+17ft-86ft

Overall

21749

Females

8907

F18-39

8907

35K→23M

21.8 - 23.0 mi

Top 75%
×5stories
+23ft-63ft

Overall

21174

Females

8648

F18-39

8648

23M→24M

23.0 - 24.0 mi

Top 86%
×6stories
+12ft-82ft

Overall

24507

Females

10386

F18-39

10386

24M→40K

24.0 - 24.9 mi

Top 69%
×1story
+6ft-20ft

Overall

19733

Females

8019

F18-39

8019

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

22481

Females

9404

F18-39

9404

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2stories
+22ft-21ft

Overall

18971

Females

7592

F18-39

7592

Passing Analysis

Category:
Athletes Passed
3184
Passed By
156
Net Change
+3028
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26826
5K → 10K60218+584#26826#26242
10K → 15K4477+440#26242#25802
15K → 20K4382+436#25802#25366
20K → Half3213+19#25366#25347
Half → 25K3701+369#25347#24978
25K → 30K27123+248#24978#24730
30K → 20M1920+192#24730#24538
20M → 21M2320+232#24538#24306
21M → 35K894+85#24306#24221
35K → 23M1817+174#24221#24047
23M → 24M3463-29#24047#24076
24M → 40K1332+131#24076#23945
40K → 25.2M3311+22#23945#23923
25.2M → Finish1305+125#23923#23798
TOTALS3184156+3028
📊

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