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BOSTON MARATHON 2025

James Lennon

Bib: 31846•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M50-54)
#0 / 1996
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
9:43/mi
30:11
↑ 97↓ 3451.5%
10K· 6.21 mi
10:01/mi
1:01:18
↑ 79↓ 1380.4%
15K· 9.32 mi
9:59/mi
1:32:19
↑ 67↓ 78
20K· 12.43 mi
10:18/mi
2:04:20
↑ 106↓ 860.1%
Half· 13.11 mi
10:13/mi
2:11:18
↑ 19↓ 370.5%
25K· 15.53 mi
10:29/mi
2:36:42
↑ 66↓ 880.2%
30K· 18.64 mi
10:46/mi
3:10:09
↑ 181↓ 1480.2%
20M
11:35/mi
3:25:53
↑ 64↓ 500.2%
21M
11:57/mi
3:37:50
↑ 106↓ 241.6%
35K· 21.75 mi
10:11/mi
3:45:27
↑ 17↓ 861.7%
23M
11:12/mi
3:59:29
↑ 23↓ 630.6%
24M
10:22/mi
4:09:51
↓ 821.3%
40K· 24.85 mi
11:10/mi
4:19:24
↓ 200.3%
25.2M
12:02/mi
4:23:33
↑ 13↓ 160.2%
Finish· 26.22 mi
10:08/mi
4:33:53
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:11:18
Pace10:01 /mi
2nd Half
Distance13.11 mi
Time2:22:35
Pace10:53 /mi
📊Positive Split: 8.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:5430:119:4330:11
9:43
-
10K
6.21 mi12:25:011:01:189:5231:07
10:01
+0:18
15K
9.32 mi12:56:021:32:199:5431:01
9:59
-0:02
20K
12.43 mi13:28:032:04:2010:0032:01
10:18
+0:19
Half
13.11 mi13:35:012:11:1810:016:58
10:13
-0:05
25K
15.53 mi14:00:252:36:4210:0525:24
10:29
+0:16
30K
18.64 mi14:33:523:10:0910:1233:27
10:46
+0:17
20M
20.00 mi14:49:363:25:5310:1815:44
11:35
+0:49
21M
21.00 mi15:01:333:37:5010:2211:57
11:57
+0:22
35K
21.75 mi15:09:103:45:2710:227:37
10:11
-1:46
23M
23.00 mi15:23:123:59:2910:2514:02
11:12
+1:01
24M
24.00 mi15:33:344:09:5110:2510:22
10:22
-0:50
40K
24.85 mi15:43:074:19:2410:269:33
11:10
+0:48
25.2M
25.20 mi15:47:164:23:3310:284:09
12:02
+0:52
Finish
26.22 mi15:57:364:33:5310:2710:20
10:08
-1:54

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

9:43 /mi

Average Pace

10:27 /mi

Slowest Pace

12:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:01:12

22% of race

Time at Steady Pace

2:03:49

45% of race

Time at Slower Pace

1:28:52

32% of race

Average Pace: 10:27 /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 mi11:53:5430:119:4330:11
9:43
#24878
10K
6.21 mi12:25:011:01:189:5231:07
10:01
#25104
15K
9.32 mi12:56:021:32:199:5431:01
9:59
#25064
20K
12.43 mi13:28:032:04:2010:0032:01
10:18
#25031
Half
13.11 mi13:35:012:11:1810:016:58
10:13
#25034
25K
15.53 mi14:00:252:36:4210:0525:24
10:29
#24915
30K
18.64 mi14:33:523:10:0910:1233:27
10:46
#24656
20M
20.00 mi14:49:363:25:5310:1815:44
11:35
#24670
21M
21.00 mi15:01:333:37:5010:2211:57
11:57
#24614
35K
21.75 mi15:09:103:45:2710:227:37
10:11
#24563
23M
23.00 mi15:23:123:59:2910:2514:02
11:12
#24515
24M
24.00 mi15:33:344:09:5110:2510:22
10:22
#24441
40K
24.85 mi15:43:074:19:2410:269:33
11:10
#24409
25.2M
25.20 mi15:47:164:23:3310:284:09
12:02
#24393
Finish
26.22 mi15:57:364:33:5310:2710:20
10:08
#24359
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi24878146671466724960(Top 88%)14704(Top 91%)14704(Top 737%)
10K6.21 mi3.10 mi25104-22614759-9214759-9225357(Top 89%)14856(Top 92%)14856(Top 744%)
15K9.32 mi3.11 mi25064+4014741+1814741+1824960(Top 88%)14704(Top 91%)14704(Top 737%)
20K12.43 mi3.11 mi25031+3314719+2214719+2224835(Top 87%)14599(Top 91%)14599(Top 731%)
Half13.11 mi0.68 mi25034-314715+414715+425265(Top 89%)14783(Top 92%)14783(Top 741%)
25K15.53 mi2.42 mi24915+11914645+7014645+7024334(Top 86%)14345(Top 89%)14345(Top 719%)
30K18.64 mi3.11 mi24656+25914501+14414501+14423533(Top 83%)13849(Top 86%)13849(Top 694%)
20M20.00 mi1.36 mi24670-1414496+514496+524676(Top 87%)14308(Top 89%)14308(Top 717%)
21M21.00 mi1.00 mi24614+5614458+3814458+3823507(Top 83%)13687(Top 85%)13687(Top 686%)
35K21.75 mi0.75 mi24563+5114425+3314425+3322380(Top 79%)13102(Top 81%)13102(Top 656%)
23M23.00 mi1.25 mi24515+4814382+4314382+4323689(Top 83%)13686(Top 85%)13686(Top 686%)
24M24.00 mi1.00 mi24441+7414341+4114341+4122446(Top 79%)13028(Top 81%)13028(Top 653%)
40K24.85 mi0.85 mi24409+3214324+1714324+1723489(Top 83%)13495(Top 84%)13495(Top 676%)
25.2M25.20 mi0.35 mi24393+1614306+1814306+1823298(Top 82%)13432(Top 83%)13432(Top 673%)
Finish26.22 mi1.02 mi24359+3414272+3414272+3423354(Top 82%)13451(Top 84%)13451(Top 674%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 88%
×21story building
+97ft-345ft

Overall

24960

Males

14704

M50-54

14704

5K→10K

3.1 - 6.2 mi

Top 89%
×5story building
+79ft-138ft

Overall

25357

Males

14856

M50-54

14856

10K→15K

6.2 - 9.3 mi

Top 88%
×3story building
+67ft-78ft

Overall

24960

Males

14704

M50-54

14704

15K→20K

9.3 - 12.4 mi

Top 87%
×5story building
+106ft-86ft

Overall

24835

Males

14599

M50-54

14599

20K→Half

12.4 - 13.1 mi

Top 89%
×2story building
+19ft-37ft

Overall

25265

Males

14783

M50-54

14783

Half→25K

13.1 - 15.5 mi

Top 86%
×4story building
+66ft-88ft

Overall

24334

Males

14345

M50-54

14345

25K→30K

15.5 - 18.6 mi

Top 83%
×9story building
+181ft-148ft

Overall

23533

Males

13849

M50-54

13849

30K→20M

18.6 - 20.0 mi

Top 87%
×5story building
+64ft-50ft

Overall

24676

Males

14308

M50-54

14308

20M→21M

20.0 - 21.0 mi

Top 83%
×8story building
+106ft-24ft

Overall

23507

Males

13687

M50-54

13687

21M→35K

21.0 - 21.8 mi

Top 79%
×7story building
+17ft-86ft

Overall

22380

Males

13102

M50-54

13102

35K→23M

21.8 - 23.0 mi

Top 83%
×5story building
+23ft-63ft

Overall

23689

Males

13686

M50-54

13686

23M→24M

23.0 - 24.0 mi

Top 79%
×6story building
+12ft-82ft

Overall

22446

Males

13028

M50-54

13028

24M→40K

24.0 - 24.9 mi

Top 83%
×1story
+6ft-20ft

Overall

23489

Males

13495

M50-54

13495

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1story
+13ft-16ft

Overall

23298

Males

13432

M50-54

13432

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2story building
+22ft-21ft

Overall

23354

Males

13451

M50-54

13451

Passing Analysis

Category:
Athletes Passed
1374
Passed By
855
Net Change
+519
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24878
5K → 10K108334-226#24878#25104
10K → 15K153113+40#25104#25064
15K → 20K146113+33#25064#25031
20K → Half2326-3#25031#25034
Half → 25K17152+119#25034#24915
25K → 30K28324+259#24915#24656
30K → 20M5165-14#24656#24670
20M → 21M8226+56#24670#24614
21M → 35K609+51#24614#24563
35K → 23M7931+48#24563#24515
23M → 24M8814+74#24515#24441
24M → 40K5018+32#24441#24409
40K → 25.2M215+16#24409#24393
25.2M → Finish5925+34#24393#24359
TOTALS1374855+519
📊

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