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BOSTON MARATHON 2025

Luke Lesaffre

Bib: 31848•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 (M40-44)
#0 / 2247
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
9:28/mi
29:24
↑ 97↓ 3451.5%
10K· 6.21 mi
8:59/mi
57:19
↑ 79↓ 1380.4%
15K· 9.32 mi
9:12/mi
1:25:53
↑ 67↓ 78
20K· 12.43 mi
9:18/mi
1:54:48
↑ 106↓ 860.1%
Half· 13.11 mi
9:04/mi
2:00:59
↑ 19↓ 370.5%
25K· 15.53 mi
9:12/mi
2:23:17
↑ 66↓ 880.2%
30K· 18.64 mi
9:32/mi
2:52:55
↑ 181↓ 1480.2%
20M
9:36/mi
3:05:58
↑ 64↓ 500.2%
21M
9:52/mi
3:15:50
↑ 106↓ 241.6%
35K· 21.75 mi
8:41/mi
3:22:20
↑ 17↓ 861.7%
23M
9:12/mi
3:33:51
↑ 23↓ 630.6%
24M
9:15/mi
3:43:06
↓ 821.3%
40K· 24.85 mi
9:39/mi
3:51:21
↓ 200.3%
25.2M
11:13/mi
3:55:13
↑ 13↓ 160.2%
Finish· 26.22 mi
9:25/mi
4:04:49
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:59
Pace9:14 /mi
2nd Half
Distance13.11 mi
Time2:03:50
Pace9:27 /mi
📊Positive Split: 2.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:54:0529:249:2829:24
9:28
-
10K
6.21 mi12:22:0057:199:1327:55
8:59
-0:29
15K
9.32 mi12:50:341:25:539:1328:34
9:12
+0:13
20K
12.43 mi13:19:291:54:489:1428:55
9:18
+0:06
Half
13.11 mi13:25:402:00:599:146:11
9:04
-0:14
25K
15.53 mi13:47:582:23:179:1322:18
9:12
+0:08
30K
18.64 mi14:17:362:52:559:1729:38
9:32
+0:20
20M
20.00 mi14:30:393:05:589:1813:03
9:36
+0:04
21M
21.00 mi14:40:313:15:509:209:52
9:52
+0:16
35K
21.75 mi14:47:013:22:209:186:30
8:41
-1:11
23M
23.00 mi14:58:323:33:519:1811:31
9:12
+0:31
24M
24.00 mi15:07:473:43:069:189:15
9:15
+0:03
40K
24.85 mi15:16:023:51:219:188:15
9:39
+0:24
25.2M
25.20 mi15:19:543:55:139:203:52
11:13
+1:34
Finish
26.22 mi15:29:304:04:499:219:36
9:25
-1:48

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

8:41 /mi

Average Pace

9:21 /mi

Slowest Pace

11:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

34:25

14% of race

Time at Steady Pace

2:55:22

72% of race

Time at Slower Pace

35:02

14% of race

Average Pace: 9:20 /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 mi11:54:0529:249:2829:24
9:28
#24119
10K
6.21 mi12:22:0057:199:1327:55
8:59
#23289
15K
9.32 mi12:50:341:25:539:1328:34
9:12
#23159
20K
12.43 mi13:19:291:54:489:1428:55
9:18
#22939
Half
13.11 mi13:25:402:00:599:146:11
9:04
#22884
25K
15.53 mi13:47:582:23:179:1322:18
9:12
#22524
30K
18.64 mi14:17:362:52:559:1729:38
9:32
#22080
20M
20.00 mi14:30:393:05:589:1813:03
9:36
#21866
21M
21.00 mi14:40:313:15:509:209:52
9:52
#21631
35K
21.75 mi14:47:013:22:209:186:30
8:41
#21480
23M
23.00 mi14:58:323:33:519:1811:31
9:12
#21216
24M
24.00 mi15:07:473:43:069:189:15
9:15
#21102
40K
24.85 mi15:16:023:51:219:188:15
9:39
#21038
25.2M
25.20 mi15:19:543:55:139:203:52
11:13
#21037
Finish
26.22 mi15:29:304:04:499:219:36
9:25
#21025
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi24119142961429622847(Top 80%)13766(Top 85%)13766(Top 613%)
10K6.21 mi3.10 mi23289+83013914+38213914+38222322(Top 79%)13483(Top 84%)13483(Top 600%)
15K9.32 mi3.11 mi23159+13013875+3913875+3922847(Top 80%)13766(Top 85%)13766(Top 613%)
20K12.43 mi3.11 mi22939+22013784+9113784+9122285(Top 78%)13482(Top 84%)13482(Top 600%)
Half13.11 mi0.68 mi22884+5513761+2313761+2322045(Top 78%)13349(Top 83%)13349(Top 594%)
25K15.53 mi2.42 mi22524+36013590+17113590+17120747(Top 73%)12749(Top 79%)12749(Top 567%)
30K18.64 mi3.11 mi22080+44413356+23413356+23420085(Top 71%)12333(Top 77%)12333(Top 549%)
20M20.00 mi1.36 mi21866+21413245+11113245+11119622(Top 69%)11984(Top 74%)11984(Top 533%)
21M21.00 mi1.00 mi21631+23513109+13613109+13617770(Top 63%)11056(Top 69%)11056(Top 492%)
35K21.75 mi0.75 mi21480+15113032+7713032+7716613(Top 58%)10461(Top 65%)10461(Top 466%)
23M23.00 mi1.25 mi21216+26412882+15012882+15017316(Top 61%)10662(Top 66%)10662(Top 474%)
24M24.00 mi1.00 mi21102+11412798+8412798+8418585(Top 65%)11214(Top 70%)11214(Top 499%)
40K24.85 mi0.85 mi21038+6412759+3912759+3919271(Top 68%)11457(Top 71%)11457(Top 510%)
25.2M25.20 mi0.35 mi21037+112749+1012749+1021238(Top 75%)12400(Top 77%)12400(Top 552%)
Finish26.22 mi1.02 mi21025+1212732+1712732+1720884(Top 74%)12233(Top 76%)12233(Top 544%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21story building
+97ft-345ft

Overall

22847

Males

13766

M40-44

13766

5K→10K

3.1 - 6.2 mi

Top 79%
×5story building
+79ft-138ft

Overall

22322

Males

13483

M40-44

13483

10K→15K

6.2 - 9.3 mi

Top 80%
×3story building
+67ft-78ft

Overall

22847

Males

13766

M40-44

13766

15K→20K

9.3 - 12.4 mi

Top 78%
×5story building
+106ft-86ft

Overall

22285

Males

13482

M40-44

13482

20K→Half

12.4 - 13.1 mi

Top 78%
×2story building
+19ft-37ft

Overall

22045

Males

13349

M40-44

13349

Half→25K

13.1 - 15.5 mi

Top 73%
×4story building
+66ft-88ft

Overall

20747

Males

12749

M40-44

12749

25K→30K

15.5 - 18.6 mi

Top 71%
×9story building
+181ft-148ft

Overall

20085

Males

12333

M40-44

12333

30K→20M

18.6 - 20.0 mi

Top 69%
×5story building
+64ft-50ft

Overall

19622

Males

11984

M40-44

11984

20M→21M

20.0 - 21.0 mi

Top 63%
×8story building
+106ft-24ft

Overall

17770

Males

11056

M40-44

11056

21M→35K

21.0 - 21.8 mi

Top 58%
×7story building
+17ft-86ft

Overall

16613

Males

10461

M40-44

10461

35K→23M

21.8 - 23.0 mi

Top 61%
×5story building
+23ft-63ft

Overall

17316

Males

10662

M40-44

10662

23M→24M

23.0 - 24.0 mi

Top 65%
×6story building
+12ft-82ft

Overall

18585

Males

11214

M40-44

11214

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

19271

Males

11457

M40-44

11457

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1story
+13ft-16ft

Overall

21238

Males

12400

M40-44

12400

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2story building
+22ft-21ft

Overall

20884

Males

12233

M40-44

12233

Passing Analysis

Category:
Athletes Passed
3463
Passed By
369
Net Change
+3094
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24119
5K → 10K85828+830#24119#23289
10K → 15K251121+130#23289#23159
15K → 20K27757+220#23159#22939
20K → Half627+55#22939#22884
Half → 25K37515+360#22884#22524
25K → 30K46420+444#22524#22080
30K → 20M2195+214#22080#21866
20M → 21M2427+235#21866#21631
21M → 35K1521+151#21631#21480
35K → 23M2728+264#21480#21216
23M → 24M12713+114#21216#21102
24M → 40K8117+64#21102#21038
40K → 25.2M3231+1#21038#21037
25.2M → Finish5139+12#21037#21025
TOTALS3463369+3094
📊

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