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BOSTON MARATHON 2025

Nicolas Laly

Bib: 3405•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 6%
Gender (Male)
#0 / 16105
Top 10%
Masters (Masters Men)
#0 / 10463
Top 2%
Division (M40-44)
#0 / 2247
Top 8%
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
6:13/mi
19:19
↑ 97↓ 3451.5%
10K· 6.21 mi
6:14/mi
38:41
↑ 79↓ 1380.4%
15K· 9.32 mi
6:13/mi
58:01
↑ 67↓ 78
20K· 12.43 mi
6:15/mi
1:17:27
↑ 106↓ 860.1%
Half· 13.11 mi
6:08/mi
1:21:38
↑ 19↓ 370.5%
25K· 15.53 mi
6:15/mi
1:36:48
↑ 66↓ 880.2%
30K· 18.64 mi
6:27/mi
1:56:51
↑ 181↓ 1480.2%
20M
6:26/mi
2:05:36
↑ 64↓ 500.2%
21M
6:55/mi
2:12:31
↑ 106↓ 241.6%
35K· 21.75 mi
6:20/mi
2:17:15
↑ 17↓ 861.7%
23M
6:36/mi
2:25:31
↑ 23↓ 630.6%
24M
6:26/mi
2:31:57
↓ 821.3%
40K· 24.85 mi
6:40/mi
2:37:39
↓ 200.3%
25.2M
7:24/mi
2:40:12
↑ 13↓ 160.2%
Finish· 26.22 mi
6:27/mi
2:46:46
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:21:38
Pace6:14 /mi
2nd Half
Distance13.11 mi
Time1:25:08
Pace6:30 /mi
📊Positive Split: 4.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:1619:196:1319:19
6:13
-
10K
6.21 mi10:41:3838:416:1419:22
6:14
+0:01
15K
9.32 mi11:00:5858:016:1319:20
6:13
-0:01
20K
12.43 mi11:20:241:17:276:1419:26
6:15
+0:02
Half
13.11 mi11:24:351:21:386:144:11
6:08
-0:07
25K
15.53 mi11:39:451:36:486:1415:10
6:15
+0:07
30K
18.64 mi11:59:481:56:516:1620:03
6:27
+0:12
20M
20.00 mi12:08:332:05:366:178:45
6:26
-0:01
21M
21.00 mi12:15:282:12:316:196:55
6:55
+0:29
35K
21.75 mi12:20:122:17:156:194:44
6:20
-0:35
23M
23.00 mi12:28:282:25:316:208:16
6:36
+0:16
24M
24.00 mi12:34:542:31:576:206:26
6:26
-0:10
40K
24.85 mi12:40:362:37:396:215:42
6:40
+0:14
25.2M
25.20 mi12:43:092:40:126:212:33
7:24
+0:44
Finish
26.22 mi12:49:432:46:466:226:34
6:27
-0:57

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

6:22 /mi

Slowest Pace

7:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:36:48

58% of race

Time at Steady Pace

46:32

28% of race

Time at Slower Pace

23:26

14% of race

Average Pace: 6:22 /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 mi10:22:1619:196:1319:19
6:13
#1960
10K
6.21 mi10:41:3838:416:1419:22
6:14
#2012
15K
9.32 mi11:00:5858:016:1319:20
6:13
#1968
20K
12.43 mi11:20:241:17:276:1419:26
6:15
#1907
Half
13.11 mi11:24:351:21:386:144:11
6:08
#1900
25K
15.53 mi11:39:451:36:486:1415:10
6:15
#1845
30K
18.64 mi11:59:481:56:516:1620:03
6:27
#1801
20M
20.00 mi12:08:332:05:366:178:45
6:26
#1738
21M
21.00 mi12:15:282:12:316:196:55
6:55
#1717
35K
21.75 mi12:20:122:17:156:194:44
6:20
#1702
23M
23.00 mi12:28:282:25:316:208:16
6:36
#1671
24M
24.00 mi12:34:542:31:576:206:26
6:26
#1650
40K
24.85 mi12:40:362:37:396:215:42
6:40
#1644
25.2M
25.20 mi12:43:092:40:126:212:33
7:24
#1656
Finish
26.22 mi12:49:432:46:466:226:34
6:27
#1678
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi1960186318631954(Top 7%)1861(Top 12%)1861(Top 83%)
10K6.21 mi3.10 mi2012-521917-541917-542070(Top 7%)1973(Top 12%)1973(Top 88%)
15K9.32 mi3.11 mi1968+441873+441873+441954(Top 7%)1861(Top 12%)1861(Top 83%)
20K12.43 mi3.11 mi1907+611817+561817+561815(Top 6%)1726(Top 11%)1726(Top 77%)
Half13.11 mi0.68 mi1900+71811+61811+61685(Top 6%)1604(Top 10%)1604(Top 71%)
25K15.53 mi2.42 mi1845+551756+551756+551677(Top 6%)1594(Top 10%)1594(Top 71%)
30K18.64 mi3.11 mi1801+441716+401716+401791(Top 6%)1702(Top 11%)1702(Top 76%)
20M20.00 mi1.36 mi1738+631652+641652+641394(Top 5%)1319(Top 8%)1319(Top 59%)
21M21.00 mi1.00 mi1717+211629+231629+231949(Top 7%)1838(Top 11%)1838(Top 82%)
35K21.75 mi0.75 mi1702+151613+161613+161739(Top 6%)1633(Top 10%)1633(Top 73%)
23M23.00 mi1.25 mi1671+311581+321581+321848(Top 7%)1729(Top 11%)1729(Top 77%)
24M24.00 mi1.00 mi1650+211563+181563+181805(Top 6%)1681(Top 10%)1681(Top 75%)
40K24.85 mi0.85 mi1644+61556+71556+72242(Top 8%)2057(Top 13%)2057(Top 92%)
25.2M25.20 mi0.35 mi1656-121568-121568-122936(Top 10%)2615(Top 16%)2615(Top 116%)
Finish26.22 mi1.02 mi1678-221588-201588-202532(Top 9%)2301(Top 14%)2301(Top 102%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21story building
+97ft-345ft

Overall

1954

Males

1861

M40-44

1861

5K→10K

3.1 - 6.2 mi

Top 7%
×5story building
+79ft-138ft

Overall

2070

Males

1973

M40-44

1973

10K→15K

6.2 - 9.3 mi

Top 7%
×3story building
+67ft-78ft

Overall

1954

Males

1861

M40-44

1861

15K→20K

9.3 - 12.4 mi

Top 6%
×5story building
+106ft-86ft

Overall

1815

Males

1726

M40-44

1726

20K→Half

12.4 - 13.1 mi

Top 6%
×2story building
+19ft-37ft

Overall

1685

Males

1604

M40-44

1604

Half→25K

13.1 - 15.5 mi

Top 6%
×4story building
+66ft-88ft

Overall

1677

Males

1594

M40-44

1594

25K→30K

15.5 - 18.6 mi

Top 6%
×9story building
+181ft-148ft

Overall

1791

Males

1702

M40-44

1702

30K→20M

18.6 - 20.0 mi

Top 5%
×5story building
+64ft-50ft

Overall

1394

Males

1319

M40-44

1319

20M→21M

20.0 - 21.0 mi

Top 7%
×8story building
+106ft-24ft

Overall

1949

Males

1838

M40-44

1838

21M→35K

21.0 - 21.8 mi

Top 6%
×7story building
+17ft-86ft

Overall

1739

Males

1633

M40-44

1633

35K→23M

21.8 - 23.0 mi

Top 7%
×5story building
+23ft-63ft

Overall

1848

Males

1729

M40-44

1729

23M→24M

23.0 - 24.0 mi

Top 6%
×6story building
+12ft-82ft

Overall

1805

Males

1681

M40-44

1681

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2242

Males

2057

M40-44

2057

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2936

Males

2615

M40-44

2615

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2story building
+22ft-21ft

Overall

2532

Males

2301

M40-44

2301

Passing Analysis

Category:
Athletes Passed
754
Passed By
472
Net Change
+282
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1960
5K → 10K93145-52#1960#2012
10K → 15K8440+44#2012#1968
15K → 20K9433+61#1968#1907
20K → Half158+7#1907#1900
Half → 25K6813+55#1900#1845
25K → 30K9955+44#1845#1801
30K → 20M729+63#1801#1738
20M → 21M4625+21#1738#1717
21M → 35K249+15#1717#1702
35K → 23M5726+31#1702#1671
23M → 24M4019+21#1671#1650
24M → 40K3327+6#1650#1644
40K → 25.2M719-12#1644#1656
25.2M → Finish2244-22#1656#1678
TOTALS754472+282
📊

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