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BOSTON MARATHON 2025

Sebastien Lorthioir

Bib: 2094•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 5%
Gender (Male)
#0 / 16105
Top 8%
Masters (Masters Men)
#0 / 10463
Top 2%
Division (M40-44)
#0 / 2247
Top 6%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:17
Rank: #1895
Start → 5K
19:17 | 6:12/mi
10K· 6.21 mi
38:19
Rank: #1706 (+189)
5K → 10K
19:02 | 6:08/mi
15K· 9.32 mi
57:32
Rank: #1724 (-18)
10K → 15K
19:13 | 6:11/mi
20K· 12.43 mi
1:16:46
Rank: #1661 (+63)
15K → 20K
19:14 | 6:11/mi
Half· 13.11 mi
1:20:58
Rank: #1657 (+4)
20K → Half
4:12 | 6:09/mi
25K· 15.53 mi
1:35:58
Rank: #1586 (+71)
Half → 25K
15:00 | 6:11/mi
30K· 18.64 mi
1:55:47
Rank: #1536 (+50)
25K → 30K
19:49 | 6:23/mi
20M
2:04:26
Rank: #1471 (+65)
30K → 20M
8:39 | 6:22/mi
21M
2:11:20
Rank: #1472 (-1)
20M → 21M
6:54 | 6:54/mi
35K· 21.75 mi
2:16:02
Rank: #1451 (+21)
21M → 35K
4:42 | 6:17/mi
23M
2:24:07
Rank: #1404 (+47)
35K → 23M
8:05 | 6:27/mi
24M
2:30:32
Rank: #1389 (+15)
23M → 24M
6:25 | 6:25/mi
40K· 24.85 mi
2:36:14
Rank: #1409 (-20)
24M → 40K
5:42 | 6:40/mi
25.2M
2:38:45
Rank: #1414 (-5)
40K → 25.2M
2:31 | 7:18/mi
Finish· 26.22 mi
2:45:27
Rank: #1448 (-34)
25.2M → Finish
6:42 | 6:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:20:58
Pace6:11 /mi
2nd Half
Distance13.11 mi
Time1:24:29
Pace6:27 /mi
📊Positive Split: 4.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:1619:176:1219:17
6:12
-
10K
6.21 mi10:39:1838:196:1019:02
6:08
-0:04
15K
9.32 mi10:58:3157:326:1019:13
6:11
+0:03
20K
12.43 mi11:17:451:16:466:1119:14
6:11
0:00
Half
13.11 mi11:21:571:20:586:114:12
6:09
-0:02
25K
15.53 mi11:36:571:35:586:1115:00
6:11
+0:02
30K
18.64 mi11:56:461:55:476:1319:49
6:23
+0:12
20M
20.00 mi12:05:252:04:266:138:39
6:22
-0:01
21M
21.00 mi12:12:192:11:206:156:54
6:54
+0:32
35K
21.75 mi12:17:012:16:026:154:42
6:17
-0:37
23M
23.00 mi12:25:062:24:076:168:05
6:27
+0:10
24M
24.00 mi12:31:312:30:326:166:25
6:25
-0:02
40K
24.85 mi12:37:132:36:146:175:42
6:40
+0:15
25.2M
25.20 mi12:39:442:38:456:182:31
7:18
+0:38
Finish
26.22 mi12:46:262:45:276:196:42
6:34
-0:44

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

6:08 /mi

Average Pace

6:19 /mi

Slowest Pace

7:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:36:02

94% of race

Time at Steady Pace

6:54

4% of race

Time at Slower Pace

2:31

2% of race

Average Pace: 6:19 /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 mi10:20:1619:176:1219:17
6:12
#1895
10K
6.21 mi10:39:1838:196:1019:02
6:08
#1706
15K
9.32 mi10:58:3157:326:1019:13
6:11
#1724
20K
12.43 mi11:17:451:16:466:1119:14
6:11
#1661
Half
13.11 mi11:21:571:20:586:114:12
6:09
#1657
25K
15.53 mi11:36:571:35:586:1115:00
6:11
#1586
30K
18.64 mi11:56:461:55:476:1319:49
6:23
#1536
20M
20.00 mi12:05:252:04:266:138:39
6:22
#1471
21M
21.00 mi12:12:192:11:206:156:54
6:54
#1472
35K
21.75 mi12:17:012:16:026:154:42
6:17
#1451
23M
23.00 mi12:25:062:24:076:168:05
6:27
#1404
24M
24.00 mi12:31:312:30:326:166:25
6:25
#1389
40K
24.85 mi12:37:132:36:146:175:42
6:40
#1409
25.2M
25.20 mi12:39:442:38:456:182:31
7:18
#1414
Finish
26.22 mi12:46:262:45:276:196:42
6:34
#1448
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi1895180118011775(Top 6%)1687(Top 10%)1687(Top 75%)
10K6.21 mi3.10 mi1706+1891624+1771624+1771568(Top 6%)1491(Top 9%)1491(Top 66%)
15K9.32 mi3.11 mi1724-181639-151639-151775(Top 6%)1687(Top 10%)1687(Top 75%)
20K12.43 mi3.11 mi1661+631577+621577+621544(Top 5%)1465(Top 9%)1465(Top 65%)
Half13.11 mi0.68 mi1657+41572+51572+51740(Top 6%)1656(Top 10%)1656(Top 74%)
25K15.53 mi2.42 mi1586+711503+691503+691402(Top 5%)1330(Top 8%)1330(Top 59%)
30K18.64 mi3.11 mi1536+501456+471456+471466(Top 5%)1387(Top 9%)1387(Top 62%)
20M20.00 mi1.36 mi1471+651391+651391+651137(Top 4%)1073(Top 7%)1073(Top 48%)
21M21.00 mi1.00 mi1472-11392-11392-11864(Top 7%)1755(Top 11%)1755(Top 78%)
35K21.75 mi0.75 mi1451+211371+211371+211523(Top 5%)1433(Top 9%)1433(Top 64%)
23M23.00 mi1.25 mi1404+471326+451326+451316(Top 5%)1237(Top 8%)1237(Top 55%)
24M24.00 mi1.00 mi1389+151309+171309+171701(Top 6%)1586(Top 10%)1586(Top 71%)
40K24.85 mi0.85 mi1409-201330-211330-212209(Top 8%)2024(Top 13%)2024(Top 90%)
25.2M25.20 mi0.35 mi1414-51334-41334-42434(Top 9%)2168(Top 13%)2168(Top 96%)
Finish26.22 mi1.02 mi1448-341366-321366-323163(Top 11%)2795(Top 17%)2795(Top 124%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21stories
+97ft-345ft

Overall

1775

Males

1687

M40-44

1687

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1568

Males

1491

M40-44

1491

10K→15K

6.2 - 9.3 mi

Top 6%
×3stories
+67ft-78ft

Overall

1775

Males

1687

M40-44

1687

15K→20K

9.3 - 12.4 mi

Top 5%
×5stories
+106ft-86ft

Overall

1544

Males

1465

M40-44

1465

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1740

Males

1656

M40-44

1656

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1402

Males

1330

M40-44

1330

25K→30K

15.5 - 18.6 mi

Top 5%
×9stories
+181ft-148ft

Overall

1466

Males

1387

M40-44

1387

30K→20M

18.6 - 20.0 mi

Top 4%
×5stories
+64ft-50ft

Overall

1137

Males

1073

M40-44

1073

20M→21M

20.0 - 21.0 mi

Top 7%
×8stories
+106ft-24ft

Overall

1864

Males

1755

M40-44

1755

21M→35K

21.0 - 21.8 mi

Top 5%
×7stories
+17ft-86ft

Overall

1523

Males

1433

M40-44

1433

35K→23M

21.8 - 23.0 mi

Top 5%
×5stories
+23ft-63ft

Overall

1316

Males

1237

M40-44

1237

23M→24M

23.0 - 24.0 mi

Top 6%
×6stories
+12ft-82ft

Overall

1701

Males

1586

M40-44

1586

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2209

Males

2024

M40-44

2024

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2434

Males

2168

M40-44

2168

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2stories
+22ft-21ft

Overall

3163

Males

2795

M40-44

2795

Passing Analysis

Category:
Athletes Passed
795
Passed By
348
Net Change
+447
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1895
5K → 10K21223+189#1895#1706
10K → 15K5674-18#1706#1724
15K → 20K8219+63#1724#1661
20K → Half1511+4#1661#1657
Half → 25K787+71#1657#1586
25K → 30K8636+50#1586#1536
30K → 20M738+65#1536#1471
20M → 21M2930-1#1471#1472
21M → 35K3312+21#1472#1451
35K → 23M6316+47#1451#1404
23M → 24M3621+15#1404#1389
24M → 40K1232-20#1389#1409
40K → 25.2M611-5#1409#1414
25.2M → Finish1448-34#1414#1448
TOTALS795348+447
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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