Boston Marathon logo
BOSTON MARATHON 2025

Grace Stidham

Bib: 13241•F

GA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 46%
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
7:44/mi
24:02
↑ 97↓ 3451.5%
10K· 6.21 mi
7:53/mi
48:32
↑ 79↓ 1380.4%
15K· 9.32 mi
7:56/mi
1:13:11
↑ 67↓ 78
20K· 12.43 mi
8:20/mi
1:39:05
↑ 106↓ 860.1%
Half· 13.11 mi
7:52/mi
1:44:27
↑ 19↓ 370.5%
25K· 15.53 mi
8:03/mi
2:03:58
↑ 66↓ 880.2%
30K· 18.64 mi
8:37/mi
2:30:43
↑ 181↓ 1480.2%
20M
9:10/mi
2:43:11
↑ 64↓ 500.2%
21M
9:38/mi
2:52:49
↑ 106↓ 241.6%
35K· 21.75 mi
8:55/mi
2:59:29
↑ 17↓ 861.7%
23M
9:18/mi
3:11:08
↑ 23↓ 630.6%
24M
9:21/mi
3:20:29
↓ 821.3%
40K· 24.85 mi
9:33/mi
3:28:39
↓ 200.3%
25.2M
10:38/mi
3:32:19
↑ 13↓ 160.2%
Finish· 26.22 mi
9:10/mi
3:41:39
↑ 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
Time1:44:27
Pace7:58 /mi
2nd Half
Distance13.11 mi
Time1:57:12
Pace8:56 /mi
📊Positive Split: 12.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:5624:027:4424:02
7:44
-
10K
6.21 mi11:17:2648:327:4924:30
7:53
+0:09
15K
9.32 mi11:42:051:13:117:5124:39
7:56
+0:03
20K
12.43 mi12:07:591:39:057:5825:54
8:20
+0:24
Half
13.11 mi12:13:211:44:277:585:22
7:52
-0:28
25K
15.53 mi12:32:522:03:587:5919:31
8:03
+0:11
30K
18.64 mi12:59:372:30:438:0526:45
8:37
+0:34
20M
20.00 mi13:12:052:43:118:1012:28
9:10
+0:33
21M
21.00 mi13:21:432:52:498:149:38
9:38
+0:28
35K
21.75 mi13:28:232:59:298:156:40
8:55
-0:43
23M
23.00 mi13:40:023:11:088:1911:39
9:18
+0:23
24M
24.00 mi13:49:233:20:298:219:21
9:21
+0:03
40K
24.85 mi13:57:333:28:398:248:10
9:33
+0:12
25.2M
25.20 mi14:01:133:32:198:263:40
10:38
+1:05
Finish
26.22 mi14:10:333:41:398:289:20
9:10
-1:28

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

7:44 /mi

Average Pace

8:28 /mi

Slowest Pace

10:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03:58

56% of race

Time at Steady Pace

1:06:52

30% of race

Time at Slower Pace

30:49

14% of race

Average Pace: 8:27 /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 mi10:52:5624:027:4424:02
7:44
#14277
10K
6.21 mi11:17:2648:327:4924:30
7:53
#14887
15K
9.32 mi11:42:051:13:117:5124:39
7:56
#15107
20K
12.43 mi12:07:591:39:057:5825:54
8:20
#15728
Half
13.11 mi12:13:211:44:277:585:22
7:52
#15687
25K
15.53 mi12:32:522:03:587:5919:31
8:03
#15400
30K
18.64 mi12:59:372:30:438:0526:45
8:37
#15399
20M
20.00 mi13:12:052:43:118:1012:28
9:10
#15548
21M
21.00 mi13:21:432:52:498:149:38
9:38
#15608
35K
21.75 mi13:28:232:59:298:156:40
8:55
#15675
23M
23.00 mi13:40:023:11:088:1911:39
9:18
#15749
24M
24.00 mi13:49:233:20:298:219:21
9:21
#15924
40K
24.85 mi13:57:333:28:398:248:10
9:33
#16048
25.2M
25.20 mi14:01:133:32:198:263:40
10:38
#16113
Finish
26.22 mi14:10:333:41:398:289:20
9:10
#16287
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi142774087408715537(Top 55%)4882(Top 40%)4882(Top 89%)
10K6.21 mi3.10 mi14887-6104485-3984485-39815581(Top 55%)4880(Top 40%)4880(Top 89%)
15K9.32 mi3.11 mi15107-2204623-1384623-13815537(Top 55%)4882(Top 40%)4882(Top 89%)
20K12.43 mi3.11 mi15728-6214997-3744997-37417144(Top 60%)5850(Top 48%)5850(Top 107%)
Half13.11 mi0.68 mi15687+414985+124985+1214896(Top 52%)4574(Top 37%)4574(Top 84%)
25K15.53 mi2.42 mi15400+2874833+1524833+15214297(Top 50%)4373(Top 36%)4373(Top 80%)
30K18.64 mi3.11 mi15399+14892-594892-5915464(Top 54%)5157(Top 42%)5157(Top 94%)
20M20.00 mi1.36 mi15548-1495000-1085000-10817656(Top 62%)6500(Top 53%)6500(Top 119%)
21M21.00 mi1.00 mi15608-605081-815081-8116713(Top 59%)6095(Top 50%)6095(Top 111%)
35K21.75 mi0.75 mi15675-675140-595140-5917815(Top 63%)6791(Top 56%)6791(Top 124%)
23M23.00 mi1.25 mi15749-745223-835223-8317797(Top 63%)6885(Top 56%)6885(Top 126%)
24M24.00 mi1.00 mi15924-1755336-1135336-11319039(Top 67%)7559(Top 62%)7559(Top 138%)
40K24.85 mi0.85 mi16048-1245433-975433-9718912(Top 67%)7582(Top 62%)7582(Top 139%)
25.2M25.20 mi0.35 mi16113-655477-445477-4419497(Top 69%)7884(Top 64%)7884(Top 144%)
Finish26.22 mi1.02 mi16287-1745596-1195596-11919785(Top 70%)8024(Top 66%)8024(Top 147%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21story building
+97ft-345ft

Overall

15537

Females

4882

F18-39

4882

5K→10K

3.1 - 6.2 mi

Top 55%
×5story building
+79ft-138ft

Overall

15581

Females

4880

F18-39

4880

10K→15K

6.2 - 9.3 mi

Top 55%
×3story building
+67ft-78ft

Overall

15537

Females

4882

F18-39

4882

15K→20K

9.3 - 12.4 mi

Top 60%
×5story building
+106ft-86ft

Overall

17144

Females

5850

F18-39

5850

20K→Half

12.4 - 13.1 mi

Top 52%
×2story building
+19ft-37ft

Overall

14896

Females

4574

F18-39

4574

Half→25K

13.1 - 15.5 mi

Top 50%
×4story building
+66ft-88ft

Overall

14297

Females

4373

F18-39

4373

25K→30K

15.5 - 18.6 mi

Top 54%
×9story building
+181ft-148ft

Overall

15464

Females

5157

F18-39

5157

30K→20M

18.6 - 20.0 mi

Top 62%
×5story building
+64ft-50ft

Overall

17656

Females

6500

F18-39

6500

20M→21M

20.0 - 21.0 mi

Top 59%
×8story building
+106ft-24ft

Overall

16713

Females

6095

F18-39

6095

21M→35K

21.0 - 21.8 mi

Top 63%
×7story building
+17ft-86ft

Overall

17815

Females

6791

F18-39

6791

35K→23M

21.8 - 23.0 mi

Top 63%
×5story building
+23ft-63ft

Overall

17797

Females

6885

F18-39

6885

23M→24M

23.0 - 24.0 mi

Top 67%
×6story building
+12ft-82ft

Overall

19039

Females

7559

F18-39

7559

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

18912

Females

7582

F18-39

7582

40K→25.2M

24.9 - 25.2 mi

Top 69%
×1story
+13ft-16ft

Overall

19497

Females

7884

F18-39

7884

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2story building
+22ft-21ft

Overall

19785

Females

8024

F18-39

8024

Passing Analysis

Category:
Athletes Passed
1366
Passed By
3376
Net Change
-2010
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14277
5K → 10K112722-610#14277#14887
10K → 15K136356-220#14887#15107
15K → 20K75696-621#15107#15728
20K → Half476+41#15728#15687
Half → 25K33245+287#15687#15400
25K → 30K246245+1#15400#15399
30K → 20M80229-149#15399#15548
20M → 21M98158-60#15548#15608
21M → 35K44111-67#15608#15675
35K → 23M85159-74#15675#15749
23M → 24M29204-175#15749#15924
24M → 40K34158-124#15924#16048
40K → 25.2M1883-65#16048#16113
25.2M → Finish30204-174#16113#16287
TOTALS13663376-2010
📊

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing