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BOSTON MARATHON 2025

James Kelly

Bib: 1117•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 6%
Gender (Male)
#0 / 16105
Top 10%
Division (M18-39)
#0 / 5642
Top 23%
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
5:54/mi
18:21
↑ 97↓ 3451.5%
10K· 6.21 mi
5:58/mi
36:52
↑ 79↓ 1380.4%
15K· 9.32 mi
6:01/mi
55:33
↑ 67↓ 78
20K· 12.43 mi
6:08/mi
1:14:36
↑ 106↓ 860.1%
Half· 13.11 mi
6:11/mi
1:18:49
↑ 19↓ 370.5%
25K· 15.53 mi
6:22/mi
1:34:14
↑ 66↓ 880.2%
30K· 18.64 mi
6:44/mi
1:55:08
↑ 181↓ 1480.2%
20M
6:50/mi
2:04:25
↑ 64↓ 500.2%
21M
7:13/mi
2:11:38
↑ 106↓ 241.6%
35K· 21.75 mi
6:41/mi
2:16:38
↑ 17↓ 861.7%
23M
6:50/mi
2:25:11
↑ 23↓ 630.6%
24M
6:37/mi
2:31:48
↓ 821.3%
40K· 24.85 mi
6:48/mi
2:37:37
↓ 200.3%
25.2M
7:18/mi
2:40:08
↑ 13↓ 160.2%
Finish· 26.22 mi
6:22/mi
2:46:37
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:18:49
Pace6:01 /mi
2nd Half
Distance13.11 mi
Time1:27:48
Pace6:42 /mi
📊Positive Split: 11.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:3718:215:5418:21
5:54
-
10K
6.21 mi10:37:0836:525:5618:31
5:58
+0:04
15K
9.32 mi10:55:4955:335:5818:41
6:01
+0:03
20K
12.43 mi11:14:521:14:366:0019:03
6:08
+0:07
Half
13.11 mi11:19:051:18:496:014:13
6:11
+0:03
25K
15.53 mi11:34:301:34:146:0415:25
6:22
+0:11
30K
18.64 mi11:55:241:55:086:1120:54
6:44
+0:22
20M
20.00 mi12:04:412:04:256:139:17
6:50
+0:06
21M
21.00 mi12:11:542:11:386:167:13
7:13
+0:23
35K
21.75 mi12:16:542:16:386:175:00
6:41
-0:32
23M
23.00 mi12:25:272:25:116:198:33
6:50
+0:09
24M
24.00 mi12:32:042:31:486:206:37
6:37
-0:13
40K
24.85 mi12:37:532:37:376:205:49
6:48
+0:11
25.2M
25.20 mi12:40:242:40:086:212:31
7:18
+0:30
Finish
26.22 mi12:46:532:46:376:226:29
6:22
-0:56

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

5:54 /mi

Average Pace

6:22 /mi

Slowest Pace

7:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:40:43

60% of race

Time at Steady Pace

38:20

23% of race

Time at Slower Pace

27:34

17% of race

Average Pace: 6:21 /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 mi10:18:3718:215:5418:21
5:54
#809
10K
6.21 mi10:37:0836:525:5618:31
5:58
#901
15K
9.32 mi10:55:4955:335:5818:41
6:01
#947
20K
12.43 mi11:14:521:14:366:0019:03
6:08
#1006
Half
13.11 mi11:19:051:18:496:014:13
6:11
#1027
25K
15.53 mi11:34:301:34:146:0415:25
6:22
#1154
30K
18.64 mi11:55:241:55:086:1120:54
6:44
#1391
20M
20.00 mi12:04:412:04:256:139:17
6:50
#1470
21M
21.00 mi12:11:542:11:386:167:13
7:13
#1537
35K
21.75 mi12:16:542:16:386:175:00
6:41
#1577
23M
23.00 mi12:25:272:25:116:198:33
6:50
#1598
24M
24.00 mi12:32:042:31:486:206:37
6:37
#1623
40K
24.85 mi12:37:532:37:376:205:49
6:48
#1636
25.2M
25.20 mi12:40:242:40:086:212:31
7:18
#1641
Finish
26.22 mi12:46:532:46:376:226:29
6:22
#1636
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi8097557551079(Top 4%)1020(Top 6%)1020(Top 18%)
10K6.21 mi3.10 mi901-92847-92847-92997(Top 4%)942(Top 6%)942(Top 17%)
15K9.32 mi3.11 mi947-46891-44891-441079(Top 4%)1020(Top 6%)1020(Top 18%)
20K12.43 mi3.11 mi1006-59949-58949-581286(Top 5%)1220(Top 8%)1220(Top 22%)
Half13.11 mi0.68 mi1027-21967-18967-181902(Top 7%)1815(Top 11%)1815(Top 32%)
25K15.53 mi2.42 mi1154-1271090-1231090-1232151(Top 8%)2047(Top 13%)2047(Top 36%)
30K18.64 mi3.11 mi1391-2371315-2251315-2253011(Top 11%)2831(Top 18%)2831(Top 50%)
20M20.00 mi1.36 mi1470-791390-751390-753128(Top 11%)2904(Top 18%)2904(Top 51%)
21M21.00 mi1.00 mi1537-671455-651455-653213(Top 11%)2961(Top 18%)2961(Top 52%)
35K21.75 mi0.75 mi1577-401493-381493-383411(Top 12%)3110(Top 19%)3110(Top 55%)
23M23.00 mi1.25 mi1598-211512-191512-192849(Top 10%)2611(Top 16%)2611(Top 46%)
24M24.00 mi1.00 mi1623-251537-251537-252566(Top 9%)2360(Top 15%)2360(Top 42%)
40K24.85 mi0.85 mi1636-131549-121549-122866(Top 10%)2592(Top 16%)2592(Top 46%)
25.2M25.20 mi0.35 mi1641-51553-41553-42531(Top 9%)2265(Top 14%)2265(Top 40%)
Finish26.22 mi1.02 mi1636+51548+51548+52149(Top 8%)1967(Top 12%)1967(Top 35%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21story building
+97ft-345ft

Overall

1079

Males

1020

M18-39

1020

5K→10K

3.1 - 6.2 mi

Top 4%
×5story building
+79ft-138ft

Overall

997

Males

942

M18-39

942

10K→15K

6.2 - 9.3 mi

Top 4%
×3story building
+67ft-78ft

Overall

1079

Males

1020

M18-39

1020

15K→20K

9.3 - 12.4 mi

Top 5%
×5story building
+106ft-86ft

Overall

1286

Males

1220

M18-39

1220

20K→Half

12.4 - 13.1 mi

Top 7%
×2story building
+19ft-37ft

Overall

1902

Males

1815

M18-39

1815

Half→25K

13.1 - 15.5 mi

Top 8%
×4story building
+66ft-88ft

Overall

2151

Males

2047

M18-39

2047

25K→30K

15.5 - 18.6 mi

Top 11%
×9story building
+181ft-148ft

Overall

3011

Males

2831

M18-39

2831

30K→20M

18.6 - 20.0 mi

Top 11%
×5story building
+64ft-50ft

Overall

3128

Males

2904

M18-39

2904

20M→21M

20.0 - 21.0 mi

Top 11%
×8story building
+106ft-24ft

Overall

3213

Males

2961

M18-39

2961

21M→35K

21.0 - 21.8 mi

Top 12%
×7story building
+17ft-86ft

Overall

3411

Males

3110

M18-39

3110

35K→23M

21.8 - 23.0 mi

Top 10%
×5story building
+23ft-63ft

Overall

2849

Males

2611

M18-39

2611

23M→24M

23.0 - 24.0 mi

Top 9%
×6story building
+12ft-82ft

Overall

2566

Males

2360

M18-39

2360

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2866

Males

2592

M18-39

2592

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2531

Males

2265

M18-39

2265

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2story building
+22ft-21ft

Overall

2149

Males

1967

M18-39

1967

Passing Analysis

Category:
Athletes Passed
242
Passed By
1069
Net Change
-827
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#809
5K → 10K18110-92#809#901
10K → 15K1359-46#901#947
15K → 20K2180-59#947#1006
20K → Half223-21#1006#1027
Half → 25K9136-127#1027#1154
25K → 30K14251-237#1154#1391
30K → 20M1392-79#1391#1470
20M → 21M1279-67#1470#1537
21M → 35K1656-40#1537#1577
35K → 23M3960-21#1577#1598
23M → 24M2348-25#1598#1623
24M → 40K2336-13#1623#1636
40K → 25.2M914-5#1636#1641
25.2M → Finish3025+5#1641#1636
TOTALS2421069-827
📊

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