Boston Marathon logo
BOSTON MARATHON 2025

Nancy Hammond

Bib: 27683•F

MO

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
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
9:36/mi
29:50
↑ 97↓ 3451.5%
10K· 6.21 mi
9:40/mi
59:53
↑ 79↓ 1380.4%
15K· 9.32 mi
9:41/mi
1:29:57
↑ 67↓ 78
20K· 12.43 mi
9:58/mi
2:00:55
↑ 106↓ 860.1%
Half· 13.11 mi
9:59/mi
2:07:44
↑ 19↓ 370.5%
25K· 15.53 mi
10:09/mi
2:32:21
↑ 66↓ 880.2%
30K· 18.64 mi
10:27/mi
3:04:49
↑ 181↓ 1480.2%
20M
10:30/mi
3:19:05
↑ 64↓ 500.2%
21M
10:46/mi
3:29:51
↑ 106↓ 241.6%
35K· 21.75 mi
10:18/mi
3:37:33
↑ 17↓ 861.7%
23M
10:13/mi
3:50:21
↑ 23↓ 630.6%
24M
10:24/mi
4:00:45
↓ 821.3%
40K· 24.85 mi
10:23/mi
4:09:38
↓ 200.3%
25.2M
11:27/mi
4:13:35
↑ 13↓ 160.2%
Finish· 26.22 mi
9:47/mi
4:23:33
↑ 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
Time2:07:44
Pace9:45 /mi
2nd Half
Distance13.11 mi
Time2:15:49
Pace10:22 /mi
📊Positive Split: 6.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:2229:509:3629:50
9:36
-
10K
6.21 mi12:21:2559:539:3830:03
9:40
+0:04
15K
9.32 mi12:51:291:29:579:3930:04
9:41
+0:01
20K
12.43 mi13:22:272:00:559:4430:58
9:58
+0:17
Half
13.11 mi13:29:162:07:449:456:49
9:59
+0:01
25K
15.53 mi13:53:532:32:219:4824:37
10:09
+0:10
30K
18.64 mi14:26:213:04:499:5532:28
10:27
+0:18
20M
20.00 mi14:40:373:19:059:5714:16
10:30
+0:03
21M
21.00 mi14:51:233:29:5110:0010:46
10:46
+0:16
35K
21.75 mi14:59:053:37:3310:007:42
10:18
-0:28
23M
23.00 mi15:11:533:50:2110:0112:48
10:13
-0:05
24M
24.00 mi15:22:174:00:4510:0210:24
10:24
+0:11
40K
24.85 mi15:31:104:09:3810:038:53
10:23
-0:01
25.2M
25.20 mi15:35:074:13:3510:043:57
11:27
+1:04
Finish
26.22 mi15:45:054:23:3310:049:58
9:47
-1:40

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

9:36 /mi

Average Pace

10:04 /mi

Slowest Pace

11:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

4:08:50

94% of race

Time at Steady Pace

10:46

4% of race

Time at Slower Pace

3:57

1% of race

Average Pace: 10:03 /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 mi11:51:2229:509:3629:50
9:36
#24563
10K
6.21 mi12:21:2559:539:3830:03
9:40
#24568
15K
9.32 mi12:51:291:29:579:3930:04
9:41
#24438
20K
12.43 mi13:22:272:00:559:4430:58
9:58
#24373
Half
13.11 mi13:29:162:07:449:456:49
9:59
#24388
25K
15.53 mi13:53:532:32:219:4824:37
10:09
#24272
30K
18.64 mi14:26:213:04:499:5532:28
10:27
#24009
20M
20.00 mi14:40:373:19:059:5714:16
10:30
#23888
21M
21.00 mi14:51:233:29:5110:0010:46
10:46
#23708
35K
21.75 mi14:59:053:37:3310:007:42
10:18
#23672
23M
23.00 mi15:11:533:50:2110:0112:48
10:13
#23510
24M
24.00 mi15:22:174:00:4510:0210:24
10:24
#23460
40K
24.85 mi15:31:104:09:3810:038:53
10:23
#23373
25.2M
25.20 mi15:35:074:13:3510:043:57
11:27
#23356
Finish
26.22 mi15:45:054:23:3310:049:58
9:47
#23338
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi245639987998724214(Top 85%)9790(Top 80%)9790(Top 751%)
10K6.21 mi3.10 mi24568-59983+49983+424547(Top 86%)9986(Top 82%)9986(Top 766%)
15K9.32 mi3.11 mi24438+1309927+569927+5624214(Top 85%)9790(Top 80%)9790(Top 751%)
20K12.43 mi3.11 mi24373+659909+189909+1824162(Top 85%)9807(Top 80%)9807(Top 753%)
Half13.11 mi0.68 mi24388-159911-29911-224821(Top 87%)10171(Top 83%)10171(Top 781%)
25K15.53 mi2.42 mi24272+1169864+479864+4723622(Top 83%)9543(Top 78%)9543(Top 732%)
30K18.64 mi3.11 mi24009+2639735+1299735+12922830(Top 80%)9229(Top 75%)9229(Top 708%)
20M20.00 mi1.36 mi23888+1219688+479688+4722420(Top 79%)9123(Top 75%)9123(Top 700%)
21M21.00 mi1.00 mi23708+1809614+749614+7420765(Top 73%)8329(Top 68%)8329(Top 639%)
35K21.75 mi0.75 mi23672+369601+139601+1322687(Top 80%)9386(Top 77%)9386(Top 720%)
23M23.00 mi1.25 mi23510+1629533+689533+6821219(Top 75%)8672(Top 71%)8672(Top 666%)
24M24.00 mi1.00 mi23460+509520+139520+1322546(Top 79%)9413(Top 77%)9413(Top 722%)
40K24.85 mi0.85 mi23373+879495+259495+2521634(Top 76%)9008(Top 74%)9008(Top 691%)
25.2M25.20 mi0.35 mi23356+179493+29493+221972(Top 77%)9144(Top 75%)9144(Top 702%)
Finish26.22 mi1.02 mi23338+189495-29495-222229(Top 78%)9284(Top 76%)9284(Top 713%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21story building
+97ft-345ft

Overall

24214

Females

9790

F50-54

9790

5K→10K

3.1 - 6.2 mi

Top 86%
×5story building
+79ft-138ft

Overall

24547

Females

9986

F50-54

9986

10K→15K

6.2 - 9.3 mi

Top 85%
×3story building
+67ft-78ft

Overall

24214

Females

9790

F50-54

9790

15K→20K

9.3 - 12.4 mi

Top 85%
×5story building
+106ft-86ft

Overall

24162

Females

9807

F50-54

9807

20K→Half

12.4 - 13.1 mi

Top 87%
×2story building
+19ft-37ft

Overall

24821

Females

10171

F50-54

10171

Half→25K

13.1 - 15.5 mi

Top 83%
×4story building
+66ft-88ft

Overall

23622

Females

9543

F50-54

9543

25K→30K

15.5 - 18.6 mi

Top 80%
×9story building
+181ft-148ft

Overall

22830

Females

9229

F50-54

9229

30K→20M

18.6 - 20.0 mi

Top 79%
×5story building
+64ft-50ft

Overall

22420

Females

9123

F50-54

9123

20M→21M

20.0 - 21.0 mi

Top 73%
×8story building
+106ft-24ft

Overall

20765

Females

8329

F50-54

8329

21M→35K

21.0 - 21.8 mi

Top 80%
×7story building
+17ft-86ft

Overall

22687

Females

9386

F50-54

9386

35K→23M

21.8 - 23.0 mi

Top 75%
×5story building
+23ft-63ft

Overall

21219

Females

8672

F50-54

8672

23M→24M

23.0 - 24.0 mi

Top 79%
×6story building
+12ft-82ft

Overall

22546

Females

9413

F50-54

9413

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

21634

Females

9008

F50-54

9008

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1story
+13ft-16ft

Overall

21972

Females

9144

F50-54

9144

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2story building
+22ft-21ft

Overall

22229

Females

9284

F50-54

9284

Passing Analysis

Category:
Athletes Passed
1884
Passed By
659
Net Change
+1225
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24563
5K → 10K198203-5#24563#24568
10K → 15K20575+130#24568#24438
15K → 20K16095+65#24438#24373
20K → Half1934-15#24373#24388
Half → 25K18367+116#24388#24272
25K → 30K30643+263#24272#24009
30K → 20M14625+121#24009#23888
20M → 21M1899+180#23888#23708
21M → 35K6125+36#23708#23672
35K → 23M1675+162#23672#23510
23M → 24M6717+50#23510#23460
24M → 40K969+87#23460#23373
40K → 25.2M3114+17#23373#23356
25.2M → Finish5638+18#23356#23338
TOTALS1884659+1225
📊

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