Boston Marathon logo
BOSTON MARATHON 2025

Claire Boynton

Bib: 19434•F

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

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:06/mi
25:11
↑ 97↓ 3451.5%
10K· 6.21 mi
8:44/mi
52:18
↑ 79↓ 1380.4%
15K· 9.32 mi
9:50/mi
1:22:50
↑ 67↓ 78
20K· 12.43 mi
10:04/mi
1:54:05
↑ 106↓ 860.1%
Half· 13.11 mi
10:10/mi
2:01:01
↑ 19↓ 370.5%
25K· 15.53 mi
10:02/mi
2:25:21
↑ 66↓ 880.2%
30K· 18.64 mi
11:04/mi
2:59:45
↑ 181↓ 1480.2%
20M
10:48/mi
3:14:26
↑ 64↓ 500.2%
21M
13:09/mi
3:27:35
↑ 106↓ 241.6%
35K· 21.75 mi
10:39/mi
3:35:33
↑ 17↓ 861.7%
23M
12:15/mi
3:50:53
↑ 23↓ 630.6%
24M
11:50/mi
4:02:43
↓ 821.3%
40K· 24.85 mi
13:46/mi
4:14:29
↓ 200.3%
25.2M
12:25/mi
4:18:46
↑ 13↓ 160.2%
Finish· 26.22 mi
10:36/mi
4:29:34
↑ 22↓ 21

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
Time2:01:01
Pace9:14 /mi
2nd Half
Distance13.11 mi
Time2:28:33
Pace11:20 /mi
📊Positive Split: 22.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:4725:118:0625:11
8:06
-
10K
6.21 mi11:46:5452:188:2527:07
8:44
+0:38
15K
9.32 mi12:17:261:22:508:5330:32
9:50
+1:06
20K
12.43 mi12:48:411:54:059:1131:15
10:04
+0:14
Half
13.11 mi12:55:372:01:019:146:56
10:10
+0:06
25K
15.53 mi13:19:572:25:219:2124:20
10:02
-0:08
30K
18.64 mi13:54:212:59:459:3934:24
11:04
+1:02
20M
20.00 mi14:09:023:14:269:4314:41
10:48
-0:16
21M
21.00 mi14:22:113:27:359:5313:09
13:09
+2:21
35K
21.75 mi14:30:093:35:339:557:58
10:39
-2:30
23M
23.00 mi14:45:293:50:5310:0215:20
12:15
+1:36
24M
24.00 mi14:57:194:02:4310:0711:50
11:50
-0:25
40K
24.85 mi15:09:054:14:2910:1411:46
13:46
+1:56
25.2M
25.20 mi15:13:224:18:4610:164:17
12:25
-1:21
Finish
26.22 mi15:24:104:29:3410:1710:48
10:36
-1:49

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

8:06 /mi

Average Pace

10:17 /mi

Slowest Pace

13:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:22:50

31% of race

Time at Steady Pace

2:10:22

48% of race

Time at Slower Pace

56:22

21% of race

Average Pace: 10:17 /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 mi11:19:4725:118:0625:11
8:06
#17414
10K
6.21 mi11:46:5452:188:2527:07
8:44
#19353
15K
9.32 mi12:17:261:22:508:5330:32
9:50
#21758
20K
12.43 mi12:48:411:54:059:1131:15
10:04
#22699
Half
13.11 mi12:55:372:01:019:146:56
10:10
#22902
25K
15.53 mi13:19:572:25:219:2124:20
10:02
#22979
30K
18.64 mi13:54:212:59:459:3934:24
11:04
#23224
20M
20.00 mi14:09:023:14:269:4314:41
10:48
#23213
21M
21.00 mi14:22:113:27:359:5313:09
13:09
#23389
35K
21.75 mi14:30:093:35:339:557:58
10:39
#23378
23M
23.00 mi14:45:293:50:5310:0215:20
12:15
#23574
24M
24.00 mi14:57:194:02:4310:0711:50
11:50
#23707
40K
24.85 mi15:09:054:14:2910:1411:46
13:46
#23926
25.2M
25.20 mi15:13:224:18:4610:164:17
12:25
#23935
Finish
26.22 mi15:24:104:29:3410:1710:48
10:36
#23968
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi174145987598724615(Top 87%)10014(Top 82%)10014(Top 183%)
10K6.21 mi3.10 mi19353-19397095-11087095-110821057(Top 74%)8052(Top 66%)8052(Top 147%)
15K9.32 mi3.11 mi21758-24058473-13788473-137824615(Top 87%)10014(Top 82%)10014(Top 183%)
20K12.43 mi3.11 mi22699-9418952-4798952-47924363(Top 86%)9913(Top 81%)9913(Top 181%)
Half13.11 mi0.68 mi22902-2039071-1199071-11925187(Top 89%)10363(Top 85%)10363(Top 189%)
25K15.53 mi2.42 mi22979-779133-629133-6223361(Top 82%)9401(Top 77%)9401(Top 172%)
30K18.64 mi3.11 mi23224-2459307-1749307-17424129(Top 85%)9936(Top 81%)9936(Top 182%)
20M20.00 mi1.36 mi23213+119321-149321-1423193(Top 82%)9522(Top 78%)9522(Top 174%)
21M21.00 mi1.00 mi23389-1769439-1189439-11825251(Top 89%)10693(Top 87%)10693(Top 196%)
35K21.75 mi0.75 mi23378+119448-99448-923492(Top 83%)9801(Top 80%)9801(Top 179%)
23M23.00 mi1.25 mi23574-1969567-1199567-11925475(Top 90%)10843(Top 89%)10843(Top 198%)
24M24.00 mi1.00 mi23707-1339655-889655-8825469(Top 90%)10862(Top 89%)10862(Top 199%)
40K24.85 mi0.85 mi23926-2199779-1249779-12427003(Top 95%)11642(Top 95%)11642(Top 213%)
25.2M25.20 mi0.35 mi23935-99796-179796-1724076(Top 85%)10205(Top 83%)10205(Top 187%)
Finish26.22 mi1.02 mi23968-339825-299825-2924508(Top 86%)10409(Top 85%)10409(Top 190%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21story building
+97ft-345ft

Overall

24615

Females

10014

F18-39

10014

5K→10K

3.1 - 6.2 mi

Top 74%
×5story building
+79ft-138ft

Overall

21057

Females

8052

F18-39

8052

10K→15K

6.2 - 9.3 mi

Top 87%
×3story building
+67ft-78ft

Overall

24615

Females

10014

F18-39

10014

15K→20K

9.3 - 12.4 mi

Top 86%
×5story building
+106ft-86ft

Overall

24363

Females

9913

F18-39

9913

20K→Half

12.4 - 13.1 mi

Top 89%
×2story building
+19ft-37ft

Overall

25187

Females

10363

F18-39

10363

Half→25K

13.1 - 15.5 mi

Top 82%
×4story building
+66ft-88ft

Overall

23361

Females

9401

F18-39

9401

25K→30K

15.5 - 18.6 mi

Top 85%
×9story building
+181ft-148ft

Overall

24129

Females

9936

F18-39

9936

30K→20M

18.6 - 20.0 mi

Top 82%
×5story building
+64ft-50ft

Overall

23193

Females

9522

F18-39

9522

20M→21M

20.0 - 21.0 mi

Top 89%
×8story building
+106ft-24ft

Overall

25251

Females

10693

F18-39

10693

21M→35K

21.0 - 21.8 mi

Top 83%
×7story building
+17ft-86ft

Overall

23492

Females

9801

F18-39

9801

35K→23M

21.8 - 23.0 mi

Top 90%
×5story building
+23ft-63ft

Overall

25475

Females

10843

F18-39

10843

23M→24M

23.0 - 24.0 mi

Top 90%
×6story building
+12ft-82ft

Overall

25469

Females

10862

F18-39

10862

24M→40K

24.0 - 24.9 mi

Top 95%
×1story
+6ft-20ft

Overall

27003

Females

11642

F18-39

11642

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

24076

Females

10205

F18-39

10205

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2story building
+22ft-21ft

Overall

24508

Females

10409

F18-39

10409

Passing Analysis

Category:
Athletes Passed
518
Passed By
7072
Net Change
-6554
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17414
5K → 10K161955-1939#17414#19353
10K → 15K92414-2405#19353#21758
15K → 20K34975-941#21758#22699
20K → Half5208-203#22699#22902
Half → 25K114191-77#22902#22979
25K → 30K92337-245#22979#23224
30K → 20M8271+11#23224#23213
20M → 21M24200-176#23213#23389
21M → 35K5039+11#23389#23378
35K → 23M26222-196#23378#23574
23M → 24M14147-133#23574#23707
24M → 40K6225-219#23707#23926
40K → 25.2M1827-9#23926#23935
25.2M → Finish2861-33#23935#23968
TOTALS5187072-6554
📊

Passing Visuals

Category:
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

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing