Boston Marathon logo
BOSTON MARATHON 2025

Peter Thornton

Bib: 21494•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M60-64)
#0 / 1259
Top 36%
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
7:48/mi
24:14
↑ 97↓ 3451.5%
10K· 6.21 mi
8:01/mi
49:09
↑ 79↓ 1380.4%
15K· 9.32 mi
8:11/mi
1:14:34
↑ 67↓ 78
20K· 12.43 mi
8:24/mi
1:40:40
↑ 106↓ 860.1%
Half· 13.11 mi
8:26/mi
1:46:25
↑ 19↓ 370.5%
25K· 15.53 mi
8:39/mi
2:07:23
↑ 66↓ 880.2%
30K· 18.64 mi
8:47/mi
2:34:41
↑ 181↓ 1480.2%
20M
9:05/mi
2:47:01
↑ 64↓ 500.2%
21M
9:35/mi
2:56:36
↑ 106↓ 241.6%
35K· 21.75 mi
8:39/mi
3:03:04
↑ 17↓ 861.7%
23M
8:59/mi
3:14:19
↑ 23↓ 630.6%
24M
8:46/mi
3:23:05
↓ 821.3%
40K· 24.85 mi
9:11/mi
3:30:56
↓ 200.3%
25.2M
10:00/mi
3:34:23
↑ 13↓ 160.2%
Finish· 26.22 mi
8:52/mi
3:43:25
↑ 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
Time1:46:25
Pace8:07 /mi
2nd Half
Distance13.11 mi
Time1:57:00
Pace8:56 /mi
📊Positive Split: 9.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:1524:147:4824:14
7:48
-
10K
6.21 mi11:44:1049:097:5524:55
8:01
+0:13
15K
9.32 mi12:09:351:14:348:0025:25
8:11
+0:10
20K
12.43 mi12:35:411:40:408:0626:06
8:24
+0:13
Half
13.11 mi12:41:261:46:258:075:45
8:26
+0:02
25K
15.53 mi13:02:242:07:238:1220:58
8:39
+0:13
30K
18.64 mi13:29:422:34:418:1827:18
8:47
+0:08
20M
20.00 mi13:42:022:47:018:2112:20
9:05
+0:18
21M
21.00 mi13:51:372:56:368:259:35
9:35
+0:30
35K
21.75 mi13:58:053:03:048:256:28
8:39
-0:56
23M
23.00 mi14:09:203:14:198:2711:15
8:59
+0:20
24M
24.00 mi14:18:063:23:058:288:46
8:46
-0:13
40K
24.85 mi14:25:573:30:568:297:51
9:11
+0:25
25.2M
25.20 mi14:29:243:34:238:303:27
10:00
+0:49
Finish
26.22 mi14:38:263:43:258:329:02
8:52
-1:08

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

7:48 /mi

Average Pace

8:32 /mi

Slowest Pace

10:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:46:25

48% of race

Time at Steady Pace

1:23:47

38% of race

Time at Slower Pace

33:13

15% of race

Average Pace: 8:31 /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 mi11:19:1524:147:4824:14
7:48
#14803
10K
6.21 mi11:44:1049:097:5524:55
8:01
#15771
15K
9.32 mi12:09:351:14:348:0025:25
8:11
#16328
20K
12.43 mi12:35:411:40:408:0626:06
8:24
#16681
Half
13.11 mi12:41:261:46:258:075:45
8:26
#16793
25K
15.53 mi13:02:242:07:238:1220:58
8:39
#16957
30K
18.64 mi13:29:422:34:418:1827:18
8:47
#16822
20M
20.00 mi13:42:022:47:018:2112:20
9:05
#16822
21M
21.00 mi13:51:372:56:368:259:35
9:35
#16767
35K
21.75 mi13:58:053:03:048:256:28
8:39
#16736
23M
23.00 mi14:09:203:14:198:2711:15
8:59
#16676
24M
24.00 mi14:18:063:23:058:288:46
8:46
#16636
40K
24.85 mi14:25:573:30:568:297:51
9:11
#16651
25.2M
25.20 mi14:29:243:34:238:303:27
10:00
#16668
Finish
26.22 mi14:38:263:43:258:329:02
8:52
#16717
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi14803103501035017261(Top 61%)11330(Top 70%)11330(Top 900%)
10K6.21 mi3.10 mi15771-96810725-37510725-37516630(Top 59%)11081(Top 69%)11081(Top 880%)
15K9.32 mi3.11 mi16328-55710949-22410949-22417261(Top 61%)11330(Top 70%)11330(Top 900%)
20K12.43 mi3.11 mi16681-35311089-14011089-14017546(Top 62%)11420(Top 71%)11420(Top 907%)
Half13.11 mi0.68 mi16793-11211138-4911138-4918683(Top 66%)11892(Top 74%)11892(Top 945%)
25K15.53 mi2.42 mi16957-16411171-3311171-3318073(Top 64%)11551(Top 72%)11551(Top 917%)
30K18.64 mi3.11 mi16822+13511062+10911062+10916511(Top 58%)10721(Top 67%)10721(Top 852%)
20M20.00 mi1.36 mi1682211043+1911043+1917187(Top 61%)10895(Top 68%)10895(Top 865%)
21M21.00 mi1.00 mi16767+5510978+6510978+6516441(Top 58%)10449(Top 65%)10449(Top 830%)
35K21.75 mi0.75 mi16736+3110954+2410954+2416302(Top 57%)10311(Top 64%)10311(Top 819%)
23M23.00 mi1.25 mi16676+6010893+6110893+6116152(Top 57%)10141(Top 63%)10141(Top 805%)
24M24.00 mi1.00 mi16636+4010856+3710856+3716109(Top 57%)10082(Top 63%)10082(Top 801%)
40K24.85 mi0.85 mi16651-1510822+3410822+3417239(Top 61%)10479(Top 65%)10479(Top 832%)
25.2M25.20 mi0.35 mi16668-1710818+410818+417000(Top 60%)10365(Top 64%)10365(Top 823%)
Finish26.22 mi1.02 mi16717-4910810+810810+818347(Top 65%)11037(Top 69%)11037(Top 877%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21story building
+97ft-345ft

Overall

17261

Males

11330

M60-64

11330

5K→10K

3.1 - 6.2 mi

Top 59%
×5story building
+79ft-138ft

Overall

16630

Males

11081

M60-64

11081

10K→15K

6.2 - 9.3 mi

Top 61%
×3story building
+67ft-78ft

Overall

17261

Males

11330

M60-64

11330

15K→20K

9.3 - 12.4 mi

Top 62%
×5story building
+106ft-86ft

Overall

17546

Males

11420

M60-64

11420

20K→Half

12.4 - 13.1 mi

Top 66%
×2story building
+19ft-37ft

Overall

18683

Males

11892

M60-64

11892

Half→25K

13.1 - 15.5 mi

Top 64%
×4story building
+66ft-88ft

Overall

18073

Males

11551

M60-64

11551

25K→30K

15.5 - 18.6 mi

Top 58%
×9story building
+181ft-148ft

Overall

16511

Males

10721

M60-64

10721

30K→20M

18.6 - 20.0 mi

Top 61%
×5story building
+64ft-50ft

Overall

17187

Males

10895

M60-64

10895

20M→21M

20.0 - 21.0 mi

Top 58%
×8story building
+106ft-24ft

Overall

16441

Males

10449

M60-64

10449

21M→35K

21.0 - 21.8 mi

Top 57%
×7story building
+17ft-86ft

Overall

16302

Males

10311

M60-64

10311

35K→23M

21.8 - 23.0 mi

Top 57%
×5story building
+23ft-63ft

Overall

16152

Males

10141

M60-64

10141

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

16109

Males

10082

M60-64

10082

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

17239

Males

10479

M60-64

10479

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

17000

Males

10365

M60-64

10365

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2story building
+22ft-21ft

Overall

18347

Males

11037

M60-64

11037

Passing Analysis

Category:
Athletes Passed
1350
Passed By
3264
Net Change
-1914
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14803
5K → 10K681036-968#14803#15771
10K → 15K75632-557#15771#16328
15K → 20K106459-353#16328#16681
20K → Half15127-112#16681#16793
Half → 25K102266-164#16793#16957
25K → 30K285150+135#16957#16822
30K → 20M1031030#16822#16822
20M → 21M13479+55#16822#16767
21M → 35K7544+31#16767#16736
35K → 23M14080+60#16736#16676
23M → 24M9959+40#16676#16636
24M → 40K7287-15#16636#16651
40K → 25.2M2340-17#16651#16668
25.2M → Finish53102-49#16668#16717
TOTALS13503264-1914
📊

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