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BOSTON MARATHON 2025

Michael Lelacheur

MA

Bib: 3990 M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 25%
Gender (Male)
#0 / 16105
Top 37%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
6:19/mi
19:36
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
6:24/mi
39:28
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
6:26/mi
59:27
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
6:31/mi
1:19:42
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
6:24/mi
1:24:04
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
6:42/mi
1:40:19
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:26/mi
2:03:26
↑ 181↓ 1480.2%
138 ft elev
20M
8:18/mi
2:14:43
↑ 64↓ 500.2%
148 ft elev
21M
10:11/mi
2:24:54
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
9:20/mi
2:31:53
↑ 17↓ 861.7%
156 ft elev
23M
8:49/mi
2:42:55
↑ 23↓ 630.6%
116 ft elev
24M
8:12/mi
2:51:07
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:32/mi
2:58:25
↓ 200.3%
20 ft elev
25.2M
9:43/mi
3:01:46
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:51/mi
3:09:46
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:24:046:25 /mi⚡ faster
2nd Half
1:45:428:04 /mi+25.7%
Positive split — 25.7% slower in the second half
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Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:4119:366:1919:36
6:19
-
10K
6.21 mi10:41:3339:286:2119:52
6:24
+0:05
15K
9.32 mi11:01:3259:276:2319:59
6:26
+0:02
20K
12.43 mi11:21:471:19:426:2520:15
6:31
+0:05
Half
13.11 mi11:26:091:24:046:254:22
6:24
-0:07
25K
15.53 mi11:42:241:40:196:2716:15
6:42
+0:18
30K
18.64 mi12:05:312:03:266:3723:07
7:26
+0:44
20M
20.00 mi12:16:482:14:436:4411:17
8:18
+0:52
21M
21.00 mi12:26:592:24:546:5410:11
10:11
+1:53
35K
21.75 mi12:33:582:31:536:596:59
9:20
-0:51
23M
23.00 mi12:45:002:42:557:0511:02
8:49
-0:31
24M
24.00 mi12:53:122:51:077:088:12
8:12
-0:37
40K
24.85 mi13:00:302:58:257:117:18
8:32
+0:20
25.2M
25.20 mi13:03:513:01:467:133:21
9:43
+1:11
Finish
26.22 mi13:11:513:09:467:158:00
7:51
-1:52

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

6:19 /mi

Average Pace

7:15 /mi

Slowest Pace

10:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:40:19

53% of race

Time at Steady Pace

50:36

27% of race

Time at Slower Pace

38:51

20% of race

Average Pace: 7:14 /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 mi10:21:4119:366:1919:36
6:19
#2493
10K
6.21 mi10:41:3339:286:2119:52
6:24
#2743
15K
9.32 mi11:01:3259:276:2319:59
6:26
#2858
20K
12.43 mi11:21:471:19:426:2520:15
6:31
#2950
Half
13.11 mi11:26:091:24:046:254:22
6:24
#2949
25K
15.53 mi11:42:241:40:196:2716:15
6:42
#3102
30K
18.64 mi12:05:312:03:266:3723:07
7:26
#3772
20M
20.00 mi12:16:482:14:436:4411:17
8:18
#4393
21M
21.00 mi12:26:592:24:546:5410:11
10:11
#5442
35K
21.75 mi12:33:582:31:536:596:59
9:20
#5922
23M
23.00 mi12:45:002:42:557:0511:02
8:49
#6319
24M
24.00 mi12:53:122:51:077:088:12
8:12
#6495
40K
24.85 mi13:00:302:58:257:117:18
8:32
#6699
25.2M
25.20 mi13:03:513:01:467:133:21
9:43
#6845
Finish
26.22 mi13:11:513:09:467:158:00
7:51
#6989
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi249323752375313429832983
10K6.21 mi3.10 mi2743-2502612-2372612-237301028662866
15K9.32 mi3.11 mi2858-1152724-1122724-112313429832983
20K12.43 mi3.11 mi2950-922811-872811-87323230643064
Half13.11 mi0.68 mi2949+12810+12810+1306329242924
25K15.53 mi2.42 mi3102-1532957-1472957-147415438663866
30K18.64 mi3.11 mi3772-6703556-5993556-599729361466146
20M20.00 mi1.36 mi4393-6214096-5404096-5401247387528752
21M21.00 mi1.00 mi5442-10494973-8774973-877189451157911579
35K21.75 mi0.75 mi5922-4805339-3665339-366196791180511805
23M23.00 mi1.25 mi6319-3975620-2815620-2811515096859685
24M24.00 mi1.00 mi6495-1765726-1065726-1061251984148414
40K24.85 mi0.85 mi6699-2045835-1095835-1091362288038803
25.2M25.20 mi0.35 mi6845-1465927-925927-921557396399639
Finish26.22 mi1.02 mi6989-1445986-595986-591175578947894

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 11%
×21story building
+97ft-345ft

Overall

3134

Males

2983

M18-39

2983

5K→10K

3.1 - 6.2 mi

Top 11%
×5story building
+79ft-138ft

Overall

3010

Males

2866

M18-39

2866

10K→15K

6.2 - 9.3 mi

Top 11%
×3story building
+67ft-78ft

Overall

3134

Males

2983

M18-39

2983

15K→20K

9.3 - 12.4 mi

Top 11%
×5story building
+106ft-86ft

Overall

3232

Males

3064

M18-39

3064

20K→Half

12.4 - 13.1 mi

Top 11%
×2story building
+19ft-37ft

Overall

3063

Males

2924

M18-39

2924

Half→25K

13.1 - 15.5 mi

Top 15%
×4story building
+66ft-88ft

Overall

4154

Males

3866

M18-39

3866

25K→30K

15.5 - 18.6 mi

Top 26%
×9story building
+181ft-148ft

Overall

7293

Males

6146

M18-39

6146

30K→20M

18.6 - 20.0 mi

Top 44%
×5story building
+64ft-50ft

Overall

12473

Males

8752

M18-39

8752

20M→21M

20.0 - 21.0 mi

Top 67%
×8story building
+106ft-24ft

Overall

18945

Males

11579

M18-39

11579

21M→35K

21.0 - 21.8 mi

Top 69%
×7story building
+17ft-86ft

Overall

19679

Males

11805

M18-39

11805

35K→23M

21.8 - 23.0 mi

Top 53%
×5story building
+23ft-63ft

Overall

15150

Males

9685

M18-39

9685

23M→24M

23.0 - 24.0 mi

Top 44%
×6story building
+12ft-82ft

Overall

12519

Males

8414

M18-39

8414

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

13622

Males

8803

M18-39

8803

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

15573

Males

9639

M18-39

9639

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2story building
+22ft-21ft

Overall

11755

Males

7894

M18-39

7894

Passing Analysis

Category:
Athletes Passed
330
Passed By
4826
Net Change
-4496
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2493
5K → 10K44294-250#2493#2743
10K → 15K41156-115#2743#2858
15K → 20K54146-92#2858#2950
20K → Half1615+1#2950#2949
Half → 25K28181-153#2949#3102
25K → 30K18688-670#3102#3772
30K → 20M8629-621#3772#4393
20M → 21M51054-1049#4393#5442
21M → 35K6486-480#5442#5922
35K → 23M26423-397#5922#6319
23M → 24M25201-176#6319#6495
24M → 40K23227-204#6495#6699
40K → 25.2M9155-146#6699#6845
25.2M → Finish27171-144#6845#6989
TOTALS3304826-4496

Passing Charts

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