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BOSTON MARATHON 2025

Clayton Kelly

Bib: 18691•M

IN

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 40%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 42%
Division (M55-59)
#0 / 1648
Top 25%
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
8:13/mi
25:32
↑ 97↓ 3451.5%
10K· 6.21 mi
7:31/mi
48:54
↑ 79↓ 1380.4%
15K· 9.32 mi
7:28/mi
1:12:05
↑ 67↓ 78
20K· 12.43 mi
7:28/mi
1:35:17
↑ 106↓ 860.1%
Half· 13.11 mi
7:27/mi
1:40:22
↑ 19↓ 370.5%
25K· 15.53 mi
7:30/mi
1:58:32
↑ 66↓ 880.2%
30K· 18.64 mi
7:49/mi
2:22:48
↑ 181↓ 1480.2%
20M
7:54/mi
2:33:32
↑ 64↓ 500.2%
21M
8:30/mi
2:42:02
↑ 106↓ 241.6%
35K· 21.75 mi
7:44/mi
2:47:49
↑ 17↓ 861.7%
23M
8:01/mi
2:57:51
↑ 23↓ 630.6%
24M
8:00/mi
3:05:51
↓ 821.3%
40K· 24.85 mi
8:00/mi
3:12:41
↓ 200.3%
25.2M
9:02/mi
3:15:48
↑ 13↓ 160.2%
Finish· 26.22 mi
8:01/mi
3:23:58
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:22
Pace7:39 /mi
2nd Half
Distance13.11 mi
Time1:43:36
Pace7:54 /mi
📊Positive Split: 3.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:5225:328:1325:32
8:13
-
10K
6.21 mi11:40:1448:547:5223:22
7:31
-0:42
15K
9.32 mi12:03:251:12:057:4423:11
7:28
-0:03
20K
12.43 mi12:26:371:35:177:4023:12
7:28
0:00
Half
13.11 mi12:31:421:40:227:395:05
7:27
-0:01
25K
15.53 mi12:49:521:58:327:3818:10
7:30
+0:03
30K
18.64 mi13:14:082:22:487:4024:16
7:49
+0:19
20M
20.00 mi13:24:522:33:327:4110:44
7:54
+0:05
21M
21.00 mi13:33:222:42:027:438:30
8:30
+0:36
35K
21.75 mi13:39:092:47:497:435:47
7:44
-0:46
23M
23.00 mi13:49:112:57:517:4410:02
8:01
+0:17
24M
24.00 mi13:57:113:05:517:458:00
8:00
-0:01
40K
24.85 mi14:04:013:12:417:456:50
8:00
0:00
25.2M
25.20 mi14:07:083:15:487:463:07
9:02
+1:02
Finish
26.22 mi14:15:183:23:587:478:10
8:01
-1:01

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

7:27 /mi

Average Pace

7:47 /mi

Slowest Pace

9:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:33:00

46% of race

Time at Steady Pace

1:13:49

36% of race

Time at Slower Pace

37:09

18% of race

Average Pace: 7:47 /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 mi11:16:5225:328:1325:32
8:13
#18222
10K
6.21 mi11:40:1448:547:5223:22
7:31
#15396
15K
9.32 mi12:03:251:12:057:4423:11
7:28
#14049
20K
12.43 mi12:26:371:35:177:4023:12
7:28
#13077
Half
13.11 mi12:31:421:40:227:395:05
7:27
#12954
25K
15.53 mi12:49:521:58:327:3818:10
7:30
#12435
30K
18.64 mi13:14:082:22:487:4024:16
7:49
#11911
20M
20.00 mi13:24:522:33:327:4110:44
7:54
#11697
21M
21.00 mi13:33:222:42:027:438:30
8:30
#11612
35K
21.75 mi13:39:092:47:497:435:47
7:44
#11546
23M
23.00 mi13:49:112:57:517:4410:02
8:01
#11413
24M
24.00 mi13:57:113:05:517:458:00
8:00
#11352
40K
24.85 mi14:04:013:12:417:456:50
8:00
#11278
25.2M
25.20 mi14:07:083:15:487:463:07
9:02
#11279
Finish
26.22 mi14:15:183:23:587:478:10
8:01
#11322
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi18222116881168811422(Top 40%)8798(Top 55%)8798(Top 534%)
10K6.21 mi3.10 mi15396+282610577+111110577+111112282(Top 43%)9276(Top 58%)9276(Top 563%)
15K9.32 mi3.11 mi14049+134710002+57510002+57511422(Top 40%)8798(Top 55%)8798(Top 534%)
20K12.43 mi3.11 mi13077+9729549+4539549+45310474(Top 37%)8250(Top 51%)8250(Top 501%)
Half13.11 mi0.68 mi12954+1239494+559494+5511262(Top 40%)8673(Top 54%)8673(Top 526%)
25K15.53 mi2.42 mi12435+5199241+2539241+2539894(Top 35%)7811(Top 49%)7811(Top 474%)
30K18.64 mi3.11 mi11911+5248934+3078934+30710024(Top 35%)7703(Top 48%)7703(Top 467%)
20M20.00 mi1.36 mi11697+2148793+1418793+1419715(Top 34%)7386(Top 46%)7386(Top 448%)
21M21.00 mi1.00 mi11612+858711+828711+8210444(Top 37%)7582(Top 47%)7582(Top 460%)
35K21.75 mi0.75 mi11546+668657+548657+5410285(Top 36%)7519(Top 47%)7519(Top 456%)
23M23.00 mi1.25 mi11413+1338545+1128545+11210105(Top 36%)7290(Top 45%)7290(Top 442%)
24M24.00 mi1.00 mi11352+618484+618484+6111221(Top 40%)7774(Top 48%)7774(Top 472%)
40K24.85 mi0.85 mi11278+748413+718413+7110118(Top 36%)7109(Top 44%)7109(Top 431%)
25.2M25.20 mi0.35 mi11279-18389+248389+2411953(Top 42%)7964(Top 49%)7964(Top 483%)
Finish26.22 mi1.02 mi11322-438379+108379+1012950(Top 46%)8503(Top 53%)8503(Top 516%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21story building
+97ft-345ft

Overall

11422

Males

8798

M55-59

8798

5K→10K

3.1 - 6.2 mi

Top 43%
×5story building
+79ft-138ft

Overall

12282

Males

9276

M55-59

9276

10K→15K

6.2 - 9.3 mi

Top 40%
×3story building
+67ft-78ft

Overall

11422

Males

8798

M55-59

8798

15K→20K

9.3 - 12.4 mi

Top 37%
×5story building
+106ft-86ft

Overall

10474

Males

8250

M55-59

8250

20K→Half

12.4 - 13.1 mi

Top 40%
×2story building
+19ft-37ft

Overall

11262

Males

8673

M55-59

8673

Half→25K

13.1 - 15.5 mi

Top 35%
×4story building
+66ft-88ft

Overall

9894

Males

7811

M55-59

7811

25K→30K

15.5 - 18.6 mi

Top 35%
×9story building
+181ft-148ft

Overall

10024

Males

7703

M55-59

7703

30K→20M

18.6 - 20.0 mi

Top 34%
×5story building
+64ft-50ft

Overall

9715

Males

7386

M55-59

7386

20M→21M

20.0 - 21.0 mi

Top 37%
×8story building
+106ft-24ft

Overall

10444

Males

7582

M55-59

7582

21M→35K

21.0 - 21.8 mi

Top 36%
×7story building
+17ft-86ft

Overall

10285

Males

7519

M55-59

7519

35K→23M

21.8 - 23.0 mi

Top 36%
×5story building
+23ft-63ft

Overall

10105

Males

7290

M55-59

7290

23M→24M

23.0 - 24.0 mi

Top 40%
×6story building
+12ft-82ft

Overall

11221

Males

7774

M55-59

7774

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

10118

Males

7109

M55-59

7109

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

11953

Males

7964

M55-59

7964

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2story building
+22ft-21ft

Overall

12950

Males

8503

M55-59

8503

Passing Analysis

Category:
Athletes Passed
7311
Passed By
411
Net Change
+6900
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18222
5K → 10K28282+2826#18222#15396
10K → 15K13481+1347#15396#14049
15K → 20K9731+972#14049#13077
20K → Half1263+123#13077#12954
Half → 25K5256+519#12954#12435
25K → 30K55329+524#12435#11911
30K → 20M23622+214#11911#11697
20M → 21M14257+85#11697#11612
21M → 35K8418+66#11612#11546
35K → 23M17744+133#11546#11413
23M → 24M11251+61#11413#11352
24M → 40K10935+74#11352#11278
40K → 25.2M3940-1#11278#11279
25.2M → Finish59102-43#11279#11322
TOTALS7311411+6900
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing