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BOSTON MARATHON 2025

James Kelly

Bib: 25585•X

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Other)
#0 / 71
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
31:07
Rank: #25606
Start → 5K
10:01/mi
31:07 split
10K· 6.21 mi
1:02:41
Rank: #25630 (-24)
5K → 10K
10:10/mi
31:34 split
15K· 9.32 mi
1:34:38
Rank: #25624 (+6)
10K → 15K
10:17/mi
31:57 split
20K· 12.43 mi
2:07:34
Rank: #25545 (+79)
15K → 20K
10:36/mi
32:56 split
Half· 13.11 mi
2:14:25
Rank: #25516 (+29)
20K → Half
10:02/mi
6:51 split
25K· 15.53 mi
2:39:26
Rank: #25247 (+269)
Half → 25K
10:19/mi
25:01 split
30K· 18.64 mi
3:13:39
Rank: #25029 (+218)
25K → 30K
11:01/mi
34:13 split
20M
3:28:38
Rank: #24940 (+89)
30K → 20M
11:02/mi
14:59 split
21M
3:41:04
Rank: #24915 (+25)
20M → 21M
12:26/mi
12:26 split
35K· 21.75 mi
3:48:48
Rank: #24851 (+64)
21M → 35K
10:20/mi
7:44 split
23M
4:02:29
Rank: #24779 (+72)
35K → 23M
10:56/mi
13:41 split
24M
4:13:41
Rank: #24764 (+15)
23M → 24M
11:12/mi
11:12 split
40K· 24.85 mi
4:22:58
Rank: #24703 (+61)
24M → 40K
10:51/mi
9:17 split
25.2M
4:27:07
Rank: #24686 (+17)
40K → 25.2M
12:02/mi
4:09 split
Finish· 26.22 mi
4:38:06
Rank: #24708 (-22)
25.2M → Finish
10:47/mi
10:59 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:14:25
Pace10:15 /mi
2nd Half
Distance13.11 mi
Time2:23:41
Pace10:58 /mi
📊Positive Split: 6.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:2031:0710:0131:07
10:01
-
10K
6.21 mi12:17:541:02:4110:0531:34
10:10
+0:09
15K
9.32 mi12:49:511:34:3810:0931:57
10:17
+0:07
20K
12.43 mi13:22:472:07:3410:1632:56
10:36
+0:19
Half
13.11 mi13:29:382:14:2510:156:51
10:02
-0:34
25K
15.53 mi13:54:392:39:2610:1625:01
10:19
+0:17
30K
18.64 mi14:28:523:13:3910:2334:13
11:01
+0:42
20M
20.00 mi14:43:513:28:3810:2614:59
11:02
+0:01
21M
21.00 mi14:56:173:41:0410:3212:26
12:26
+1:24
35K
21.75 mi15:04:013:48:4810:317:44
10:20
-2:06
23M
23.00 mi15:17:424:02:2910:3313:41
10:56
+0:36
24M
24.00 mi15:28:544:13:4110:3411:12
11:12
+0:16
40K
24.85 mi15:38:114:22:5810:359:17
10:51
-0:21
25.2M
25.20 mi15:42:204:27:0710:364:09
12:02
+1:11
Finish
26.22 mi15:53:194:38:0610:3710:59
10:47
-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

10:01 /mi

Average Pace

10:37 /mi

Slowest Pace

12:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:14:14

48% of race

Time at Steady Pace

1:56:05

42% of race

Time at Slower Pace

27:47

10% of race

Average Pace: 10:36 /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 mi11:46:2031:0710:0131:07
10:01
#25606
10K
6.21 mi12:17:541:02:4110:0531:34
10:10
#25630
15K
9.32 mi12:49:511:34:3810:0931:57
10:17
#25624
20K
12.43 mi13:22:472:07:3410:1632:56
10:36
#25545
Half
13.11 mi13:29:382:14:2510:156:51
10:02
#25516
25K
15.53 mi13:54:392:39:2610:1625:01
10:19
#25247
30K
18.64 mi14:28:523:13:3910:2334:13
11:01
#25029
20M
20.00 mi14:43:513:28:3810:2614:59
11:02
#24940
21M
21.00 mi14:56:173:41:0410:3212:26
12:26
#24915
35K
21.75 mi15:04:013:48:4810:317:44
10:20
#24851
23M
23.00 mi15:17:424:02:2910:3313:41
10:56
#24779
24M
24.00 mi15:28:544:13:4110:3411:12
11:12
#24764
40K
24.85 mi15:38:114:22:5810:359:17
10:51
#24703
25.2M
25.20 mi15:42:204:27:0710:364:09
12:02
#24686
Finish
26.22 mi15:53:194:38:0610:3710:59
10:47
#24708
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallXAge DivSeg. OverallSeg. XSeg. Age Div
5K3.11 mi3.11 mi25606656525563(Top 90%)65(Top 92%)65
10K6.21 mi3.10 mi25630-24656525649(Top 90%)65(Top 92%)65
15K9.32 mi3.11 mi25624+6656525563(Top 90%)65(Top 92%)65
20K12.43 mi3.11 mi25545+79656525357(Top 89%)66(Top 93%)66
Half13.11 mi0.68 mi25516+29656524883(Top 88%)65(Top 92%)65
25K15.53 mi2.42 mi25247+269656523988(Top 84%)63(Top 89%)63
30K18.64 mi3.11 mi25029+218656524016(Top 85%)62(Top 87%)62
20M20.00 mi1.36 mi24940+89656523630(Top 83%)61(Top 86%)61
21M21.00 mi1.00 mi24915+25656524302(Top 86%)61(Top 86%)61
35K21.75 mi0.75 mi24851+6464+164+122769(Top 80%)58(Top 82%)58
23M23.00 mi1.25 mi24779+72646423053(Top 81%)58(Top 82%)58
24M24.00 mi1.00 mi24764+15646424377(Top 86%)60(Top 85%)60
40K24.85 mi0.85 mi24703+61646422793(Top 80%)57(Top 80%)57
25.2M25.20 mi0.35 mi24686+17646423255(Top 82%)60(Top 85%)60
Finish26.22 mi1.02 mi24708-22646424894(Top 88%)65(Top 92%)65

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21story building
+97ft-345ft

Overall

25563

X

65

Age Div

65

5K→10K

3.1 - 6.2 mi

Top 90%
×5story building
+79ft-138ft

Overall

25649

X

65

Age Div

65

10K→15K

6.2 - 9.3 mi

Top 90%
×3story building
+67ft-78ft

Overall

25563

X

65

Age Div

65

15K→20K

9.3 - 12.4 mi

Top 89%
×5story building
+106ft-86ft

Overall

25357

X

66

Age Div

66

20K→Half

12.4 - 13.1 mi

Top 88%
×2story building
+19ft-37ft

Overall

24883

X

65

Age Div

65

Half→25K

13.1 - 15.5 mi

Top 84%
×4story building
+66ft-88ft

Overall

23988

X

63

Age Div

63

25K→30K

15.5 - 18.6 mi

Top 85%
×9story building
+181ft-148ft

Overall

24016

X

62

Age Div

62

30K→20M

18.6 - 20.0 mi

Top 83%
×5story building
+64ft-50ft

Overall

23630

X

61

Age Div

61

20M→21M

20.0 - 21.0 mi

Top 86%
×8story building
+106ft-24ft

Overall

24302

X

61

Age Div

61

21M→35K

21.0 - 21.8 mi

Top 80%
×7story building
+17ft-86ft

Overall

22769

X

58

Age Div

58

35K→23M

21.8 - 23.0 mi

Top 81%
×5story building
+23ft-63ft

Overall

23053

X

58

Age Div

58

23M→24M

23.0 - 24.0 mi

Top 86%
×6story building
+12ft-82ft

Overall

24377

X

60

Age Div

60

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

22793

X

57

Age Div

57

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1story
+13ft-16ft

Overall

23255

X

60

Age Div

60

25.2M→Finish

25.2 - 26.2 mi

Top 88%
×2story building
+22ft-21ft

Overall

24894

X

65

Age Div

65

Passing Analysis

Category:
Athletes Passed
1536
Passed By
638
Net Change
+898
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25606
5K → 10K188212-24#25606#25630
10K → 15K130124+6#25630#25624
15K → 20K16182+79#25624#25545
20K → Half3910+29#25545#25516
Half → 25K2756+269#25516#25247
25K → 30K25032+218#25247#25029
30K → 20M10314+89#25029#24940
20M → 21M6540+25#24940#24915
21M → 35K7915+64#24915#24851
35K → 23M8715+72#24851#24779
23M → 24M4934+15#24779#24764
24M → 40K687+61#24764#24703
40K → 25.2M203+17#24703#24686
25.2M → Finish2244-22#24686#24708
TOTALS1536638+898
📊

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