Boston Marathon logo
BOSTON MARATHON 2025

Doug Kells

ON

Bib: 10542 M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 42%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 44%
Division (M50-54)
#0 / 1996
Top 47%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:30/mi
23:18
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:30/mi
46:35
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:39/mi
1:10:20
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:58/mi
1:35:04
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:58/mi
1:40:30
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:00/mi
1:59:55
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:09/mi
2:25:14
↑ 181↓ 1480.2%
138 ft elev
20M
8:02/mi
2:36:09
↑ 64↓ 500.2%
148 ft elev
21M
8:24/mi
2:44:33
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:42/mi
2:50:19
↑ 17↓ 861.7%
156 ft elev
23M
7:58/mi
3:00:17
↑ 23↓ 630.6%
116 ft elev
24M
7:46/mi
3:08:03
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:54/mi
3:14:48
↓ 200.3%
20 ft elev
25.2M
8:45/mi
3:17:49
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:29/mi
3:25:27
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Is this your race?

Claim it for a free AI report

A coach's-eye read of your race — emailed to you, free.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:30
Pace7:40 /mi
2nd Half
Distance13.11 mi
Time1:44:57
Pace8:00 /mi
📊Positive Split: 4.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:1823:187:3023:18
7:30
-
10K
6.21 mi11:12:3546:357:3023:17
7:30
0:00
15K
9.32 mi11:36:201:10:207:3323:45
7:39
+0:09
20K
12.43 mi12:01:041:35:047:3924:44
7:58
+0:19
Half
13.11 mi12:06:301:40:307:405:26
7:58
0:00
25K
15.53 mi12:25:551:59:557:4319:25
8:00
+0:02
30K
18.64 mi12:51:142:25:147:4725:19
8:09
+0:09
20M
20.00 mi13:02:092:36:097:4810:55
8:02
-0:07
21M
21.00 mi13:10:332:44:337:508:24
8:24
+0:22
35K
21.75 mi13:16:192:50:197:505:46
7:42
-0:42
23M
23.00 mi13:26:173:00:177:509:58
7:58
+0:16
24M
24.00 mi13:34:033:08:037:507:46
7:46
-0:12
40K
24.85 mi13:40:483:14:487:506:45
7:54
+0:08
25.2M
25.20 mi13:43:493:17:497:513:01
8:45
+0:51
Finish
26.22 mi13:51:273:25:277:507:38
7:29
-1:16

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

7:29 /mi

Average Pace

7:50 /mi

Slowest Pace

8:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:14:02

94% of race

Time at Steady Pace

11:25

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:50 /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 mi10:49:1823:187:3023:18
7:30
#12236
10K
6.21 mi11:12:3546:357:3023:17
7:30
#12090
15K
9.32 mi11:36:201:10:207:3323:45
7:39
#12390
20K
12.43 mi12:01:041:35:047:3924:44
7:58
#12923
Half
13.11 mi12:06:301:40:307:405:26
7:58
#13063
25K
15.53 mi12:25:551:59:557:4319:25
8:00
#13183
30K
18.64 mi12:51:142:25:147:4725:19
8:09
#13005
20M
20.00 mi13:02:092:36:097:4810:55
8:02
#12794
21M
21.00 mi13:10:332:44:337:508:24
8:24
#12590
35K
21.75 mi13:16:192:50:197:505:46
7:42
#12467
23M
23.00 mi13:26:173:00:177:509:58
7:58
#12270
24M
24.00 mi13:34:033:08:037:507:46
7:46
#12118
40K
24.85 mi13:40:483:14:487:506:45
7:54
#11994
25.2M
25.20 mi13:43:493:17:497:513:01
8:45
#11950
Finish
26.22 mi13:51:273:25:277:507:38
7:29
#11815
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi122369279927912972(Top 46%)9503(Top 59%)9503(Top 476%)
10K6.21 mi3.10 mi12090+1469198+819198+8112030(Top 42%)9162(Top 57%)9162(Top 459%)
15K9.32 mi3.11 mi12390-3009310-1129310-11212972(Top 46%)9503(Top 59%)9503(Top 476%)
20K12.43 mi3.11 mi12923-5339484-1749484-17414605(Top 51%)10129(Top 63%)10129(Top 507%)
Half13.11 mi0.68 mi13063-1409542-589542-5815533(Top 55%)10561(Top 66%)10561(Top 529%)
25K15.53 mi2.42 mi13183-1209563-219563-2113937(Top 49%)9719(Top 60%)9719(Top 487%)
30K18.64 mi3.11 mi13005+1789416+1479416+14712415(Top 44%)8870(Top 55%)8870(Top 444%)
20M20.00 mi1.36 mi12794+2119296+1209296+12010657(Top 38%)7865(Top 49%)7865(Top 394%)
21M21.00 mi1.00 mi12590+2049172+1249172+1249833(Top 35%)7277(Top 45%)7277(Top 365%)
35K21.75 mi0.75 mi12467+1239089+839089+8310121(Top 36%)7431(Top 46%)7431(Top 372%)
23M23.00 mi1.25 mi12270+1978957+1328957+1329733(Top 34%)7101(Top 44%)7101(Top 356%)
24M24.00 mi1.00 mi12118+1528858+998858+999567(Top 34%)6959(Top 43%)6959(Top 349%)
40K24.85 mi0.85 mi11994+1248750+1088750+1089423(Top 33%)6763(Top 42%)6763(Top 339%)
25.2M25.20 mi0.35 mi11950+448720+308720+3010271(Top 36%)7095(Top 44%)7095(Top 355%)
Finish26.22 mi1.02 mi11815+1358622+988622+989113(Top 32%)6507(Top 40%)6507(Top 326%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21story building
+97ft-345ft

Overall

12972

Males

9503

M50-54

9503

5K→10K

3.1 - 6.2 mi

Top 42%
×5story building
+79ft-138ft

Overall

12030

Males

9162

M50-54

9162

10K→15K

6.2 - 9.3 mi

Top 46%
×3story building
+67ft-78ft

Overall

12972

Males

9503

M50-54

9503

15K→20K

9.3 - 12.4 mi

Top 51%
×5story building
+106ft-86ft

Overall

14605

Males

10129

M50-54

10129

20K→Half

12.4 - 13.1 mi

Top 55%
×2story building
+19ft-37ft

Overall

15533

Males

10561

M50-54

10561

Half→25K

13.1 - 15.5 mi

Top 49%
×4story building
+66ft-88ft

Overall

13937

Males

9719

M50-54

9719

25K→30K

15.5 - 18.6 mi

Top 44%
×9story building
+181ft-148ft

Overall

12415

Males

8870

M50-54

8870

30K→20M

18.6 - 20.0 mi

Top 38%
×5story building
+64ft-50ft

Overall

10657

Males

7865

M50-54

7865

20M→21M

20.0 - 21.0 mi

Top 35%
×8story building
+106ft-24ft

Overall

9833

Males

7277

M50-54

7277

21M→35K

21.0 - 21.8 mi

Top 36%
×7story building
+17ft-86ft

Overall

10121

Males

7431

M50-54

7431

35K→23M

21.8 - 23.0 mi

Top 34%
×5story building
+23ft-63ft

Overall

9733

Males

7101

M50-54

7101

23M→24M

23.0 - 24.0 mi

Top 34%
×6story building
+12ft-82ft

Overall

9567

Males

6959

M50-54

6959

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

9423

Males

6763

M50-54

6763

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

10271

Males

7095

M50-54

7095

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2story building
+22ft-21ft

Overall

9113

Males

6507

M50-54

6507

Passing Analysis

Category:
Athletes Passed
2293
Passed By
1872
Net Change
+421
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12236
5K → 10K326180+146#12236#12090
10K → 15K97397-300#12090#12390
15K → 20K77610-533#12390#12923
20K → Half10150-140#12923#13063
Half → 25K122242-120#13063#13183
25K → 30K331153+178#13183#13005
30K → 20M23928+211#13005#12794
20M → 21M22521+204#12794#12590
21M → 35K13613+123#12590#12467
35K → 23M21013+197#12467#12270
23M → 24M16513+152#12270#12118
24M → 40K14622+124#12118#11994
40K → 25.2M5511+44#11994#11950
25.2M → Finish15419+135#11950#11815
TOTALS22931872+421
📊

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