Boston Marathon logo
BOSTON MARATHON 2025

Samantha Galvin

Bib: 31220•F

MA

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
9:03/mi
28:06
↑ 97↓ 3451.5%
10K· 6.21 mi
8:56/mi
55:50
↑ 79↓ 1380.4%
15K· 9.32 mi
8:53/mi
1:23:25
↑ 67↓ 78
20K· 12.43 mi
9:06/mi
1:51:40
↑ 106↓ 860.1%
Half· 13.11 mi
9:07/mi
1:57:53
↑ 19↓ 370.5%
25K· 15.53 mi
9:16/mi
2:20:21
↑ 66↓ 880.2%
30K· 18.64 mi
9:36/mi
2:50:09
↑ 181↓ 1480.2%
20M
9:41/mi
3:03:19
↑ 64↓ 500.2%
21M
10:07/mi
3:13:26
↑ 106↓ 241.6%
35K· 21.75 mi
9:28/mi
3:20:31
↑ 17↓ 861.7%
23M
9:49/mi
3:32:48
↑ 23↓ 630.6%
24M
9:39/mi
3:42:27
↓ 821.3%
40K· 24.85 mi
9:51/mi
3:50:52
↓ 200.3%
25.2M
10:26/mi
3:54:28
↑ 13↓ 160.2%
Finish· 26.22 mi
9:11/mi
4:03:49
↑ 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
Time1:57:53
Pace9:00 /mi
2nd Half
Distance13.11 mi
Time2:05:56
Pace9:36 /mi
📊Positive Split: 6.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:5628:069:0328:06
9:03
-
10K
6.21 mi12:19:4055:508:5927:44
8:56
-0:07
15K
9.32 mi12:47:151:23:258:5727:35
8:53
-0:03
20K
12.43 mi13:15:301:51:408:5928:15
9:06
+0:13
Half
13.11 mi13:21:431:57:539:006:13
9:07
+0:01
25K
15.53 mi13:44:112:20:219:0222:28
9:16
+0:09
30K
18.64 mi14:13:592:50:099:0829:48
9:36
+0:20
20M
20.00 mi14:27:093:03:199:1013:10
9:41
+0:05
21M
21.00 mi14:37:163:13:269:1310:07
10:07
+0:26
35K
21.75 mi14:44:213:20:319:137:05
9:28
-0:39
23M
23.00 mi14:56:383:32:489:1512:17
9:49
+0:21
24M
24.00 mi15:06:173:42:279:169:39
9:39
-0:10
40K
24.85 mi15:14:423:50:529:178:25
9:51
+0:12
25.2M
25.20 mi15:18:183:54:289:183:36
10:26
+0:35
Finish
26.22 mi15:27:394:03:499:189:21
9:11
-1:15

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

8:53 /mi

Average Pace

9:18 /mi

Slowest Pace

10:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:29:24

86% of race

Time at Steady Pace

34:25

14% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:18 /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 mi11:51:5628:069:0328:06
9:03
#22617
10K
6.21 mi12:19:4055:508:5927:44
8:56
#22372
15K
9.32 mi12:47:151:23:258:5727:35
8:53
#22077
20K
12.43 mi13:15:301:51:408:5928:15
9:06
#21873
Half
13.11 mi13:21:431:57:539:006:13
9:07
#21878
25K
15.53 mi13:44:112:20:219:0222:28
9:16
#21719
30K
18.64 mi14:13:592:50:099:0829:48
9:36
#21437
20M
20.00 mi14:27:093:03:199:1013:10
9:41
#21311
21M
21.00 mi14:37:163:13:269:1310:07
10:07
#21178
35K
21.75 mi14:44:213:20:319:137:05
9:28
#21122
23M
23.00 mi14:56:383:32:489:1512:17
9:49
#21036
24M
24.00 mi15:06:173:42:279:169:39
9:39
#20999
40K
24.85 mi15:14:423:50:529:178:25
9:51
#20959
25.2M
25.20 mi15:18:183:54:289:183:36
10:26
#20914
Finish
26.22 mi15:27:394:03:499:189:21
9:11
#20859
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi226178968896821462(Top 76%)8257(Top 68%)8257(Top 151%)
10K6.21 mi3.10 mi22372+2458823+1458823+14522074(Top 78%)8636(Top 71%)8636(Top 158%)
15K9.32 mi3.11 mi22077+2958642+1818642+18121462(Top 76%)8257(Top 68%)8257(Top 151%)
20K12.43 mi3.11 mi21873+2048534+1088534+10821413(Top 75%)8268(Top 68%)8268(Top 151%)
Half13.11 mi0.68 mi21878-58533+18533+122270(Top 78%)8752(Top 72%)8752(Top 160%)
25K15.53 mi2.42 mi21719+1598453+808453+8021051(Top 74%)8125(Top 66%)8125(Top 149%)
30K18.64 mi3.11 mi21437+2828326+1278326+12720323(Top 72%)7835(Top 64%)7835(Top 143%)
20M20.00 mi1.36 mi21311+1268276+508276+5019919(Top 70%)7739(Top 63%)7739(Top 142%)
21M21.00 mi1.00 mi21178+1338219+578219+5718760(Top 66%)7218(Top 59%)7218(Top 132%)
35K21.75 mi0.75 mi21122+568203+168203+1620246(Top 71%)8104(Top 66%)8104(Top 148%)
23M23.00 mi1.25 mi21036+868180+238180+2319841(Top 70%)7967(Top 65%)7967(Top 146%)
24M24.00 mi1.00 mi20999+378184-48184-420211(Top 71%)8195(Top 67%)8195(Top 150%)
40K24.85 mi0.85 mi20959+408178+68178+619959(Top 70%)8138(Top 67%)8138(Top 149%)
25.2M25.20 mi0.35 mi20914+458161+178161+1718857(Top 66%)7568(Top 62%)7568(Top 138%)
Finish26.22 mi1.02 mi20859+558147+148147+1419868(Top 70%)8078(Top 66%)8078(Top 148%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21story building
+97ft-345ft

Overall

21462

Females

8257

F18-39

8257

5K→10K

3.1 - 6.2 mi

Top 78%
×5story building
+79ft-138ft

Overall

22074

Females

8636

F18-39

8636

10K→15K

6.2 - 9.3 mi

Top 76%
×3story building
+67ft-78ft

Overall

21462

Females

8257

F18-39

8257

15K→20K

9.3 - 12.4 mi

Top 75%
×5story building
+106ft-86ft

Overall

21413

Females

8268

F18-39

8268

20K→Half

12.4 - 13.1 mi

Top 78%
×2story building
+19ft-37ft

Overall

22270

Females

8752

F18-39

8752

Half→25K

13.1 - 15.5 mi

Top 74%
×4story building
+66ft-88ft

Overall

21051

Females

8125

F18-39

8125

25K→30K

15.5 - 18.6 mi

Top 72%
×9story building
+181ft-148ft

Overall

20323

Females

7835

F18-39

7835

30K→20M

18.6 - 20.0 mi

Top 70%
×5story building
+64ft-50ft

Overall

19919

Females

7739

F18-39

7739

20M→21M

20.0 - 21.0 mi

Top 66%
×8story building
+106ft-24ft

Overall

18760

Females

7218

F18-39

7218

21M→35K

21.0 - 21.8 mi

Top 71%
×7story building
+17ft-86ft

Overall

20246

Females

8104

F18-39

8104

35K→23M

21.8 - 23.0 mi

Top 70%
×5story building
+23ft-63ft

Overall

19841

Females

7967

F18-39

7967

23M→24M

23.0 - 24.0 mi

Top 71%
×6story building
+12ft-82ft

Overall

20211

Females

8195

F18-39

8195

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

19959

Females

8138

F18-39

8138

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

18857

Females

7568

F18-39

7568

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2story building
+22ft-21ft

Overall

19868

Females

8078

F18-39

8078

Passing Analysis

Category:
Athletes Passed
2434
Passed By
676
Net Change
+1758
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22617
5K → 10K400155+245#22617#22372
10K → 15K35762+295#22372#22077
15K → 20K27975+204#22077#21873
20K → Half3136-5#21873#21878
Half → 25K22061+159#21878#21719
25K → 30K34866+282#21719#21437
30K → 20M15832+126#21437#21311
20M → 21M16229+133#21311#21178
21M → 35K8327+56#21178#21122
35K → 23M12640+86#21122#21036
23M → 24M7841+37#21036#20999
24M → 40K7030+40#20999#20959
40K → 25.2M472+45#20959#20914
25.2M → Finish7520+55#20914#20859
TOTALS2434676+1758
📊

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