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BOSTON MARATHON 2025

Nicholas Lanzer

Bib: 6491•M

OH

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 17%
Gender (Male)
#0 / 16105
Top 28%
Masters (Masters Men)
#0 / 10463
Top 14%
Division (M40-44)
#0 / 2247
Top 35%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:51
Rank: #5533
Start → 5K
20:51 | 6:43/mi
10K· 6.21 mi
41:45
Rank: #5546 (-13)
5K → 10K
20:54 | 6:44/mi
15K· 9.32 mi
1:02:46
Rank: #5563 (-17)
10K → 15K
21:01 | 6:46/mi
20K· 12.43 mi
1:24:06
Rank: #5645 (-82)
15K → 20K
21:20 | 6:52/mi
Half· 13.11 mi
1:28:44
Rank: #5658 (-13)
20K → Half
4:38 | 6:47/mi
25K· 15.53 mi
1:45:26
Rank: #5599 (+59)
Half → 25K
16:42 | 6:53/mi
30K· 18.64 mi
2:07:42
Rank: #5592 (+7)
25K → 30K
22:16 | 7:10/mi
20M
2:17:29
Rank: #5558 (+34)
30K → 20M
9:47 | 7:12/mi
21M
2:24:57
Rank: #5458 (+100)
20M → 21M
7:28 | 7:28/mi
35K· 21.75 mi
2:30:02
Rank: #5363 (+95)
21M → 35K
5:05 | 6:48/mi
23M
2:38:49
Rank: #5224 (+139)
35K → 23M
8:47 | 7:01/mi
24M
2:45:38
Rank: #5120 (+104)
23M → 24M
6:49 | 6:49/mi
40K· 24.85 mi
2:51:38
Rank: #5047 (+73)
24M → 40K
6:00 | 7:01/mi
25.2M
2:54:16
Rank: #5014 (+33)
40K → 25.2M
2:38 | 7:38/mi
Finish· 26.22 mi
3:00:59
Rank: #4912 (+102)
25.2M → Finish
6:43 | 6:35/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:44
Pace6:46 /mi
2nd Half
Distance13.11 mi
Time1:32:15
Pace7:02 /mi
📊Positive Split: 4.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:28:2620:516:4320:51
6:43
-
10K
6.21 mi10:49:2041:456:4320:54
6:44
+0:01
15K
9.32 mi11:10:211:02:466:4421:01
6:46
+0:02
20K
12.43 mi11:31:411:24:066:4621:20
6:52
+0:06
Half
13.11 mi11:36:191:28:446:464:38
6:47
-0:05
25K
15.53 mi11:53:011:45:266:4716:42
6:53
+0:06
30K
18.64 mi12:15:172:07:426:5122:16
7:10
+0:17
20M
20.00 mi12:25:042:17:296:529:47
7:12
+0:02
21M
21.00 mi12:32:322:24:576:547:28
7:28
+0:16
35K
21.75 mi12:37:372:30:026:545:05
6:48
-0:40
23M
23.00 mi12:46:242:38:496:548:47
7:01
+0:13
24M
24.00 mi12:53:132:45:386:546:49
6:49
-0:12
40K
24.85 mi12:59:132:51:386:546:00
7:01
+0:12
25.2M
25.20 mi13:01:512:54:166:552:38
7:38
+0:37
Finish
26.22 mi13:08:343:00:596:546:43
6:35
-1:03

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

6:35 /mi

Average Pace

6:54 /mi

Slowest Pace

7:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:50:53

94% of race

Time at Steady Pace

10:06

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:54 /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 mi10:28:2620:516:4320:51
6:43
#5533
10K
6.21 mi10:49:2041:456:4320:54
6:44
#5546
15K
9.32 mi11:10:211:02:466:4421:01
6:46
#5563
20K
12.43 mi11:31:411:24:066:4621:20
6:52
#5645
Half
13.11 mi11:36:191:28:446:464:38
6:47
#5658
25K
15.53 mi11:53:011:45:266:4716:42
6:53
#5599
30K
18.64 mi12:15:172:07:426:5122:16
7:10
#5592
20M
20.00 mi12:25:042:17:296:529:47
7:12
#5558
21M
21.00 mi12:32:322:24:576:547:28
7:28
#5458
35K
21.75 mi12:37:372:30:026:545:05
6:48
#5363
23M
23.00 mi12:46:242:38:496:548:47
7:01
#5224
24M
24.00 mi12:53:132:45:386:546:49
6:49
#5120
40K
24.85 mi12:59:132:51:386:546:00
7:01
#5047
25.2M
25.20 mi13:01:512:54:166:552:38
7:38
#5014
Finish
26.22 mi13:08:343:00:596:546:43
6:35
#4912
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi5533512351235722(Top 20%)5217(Top 32%)5217(Top 232%)
10K6.21 mi3.10 mi5546-135126-35126-35580(Top 20%)5129(Top 32%)5129(Top 228%)
15K9.32 mi3.11 mi5563-175132-65132-65722(Top 20%)5217(Top 32%)5217(Top 232%)
20K12.43 mi3.11 mi5645-825185-535185-535906(Top 21%)5354(Top 33%)5354(Top 238%)
Half13.11 mi0.68 mi5658-135197-125197-125995(Top 21%)5416(Top 34%)5416(Top 241%)
25K15.53 mi2.42 mi5599+595143+545143+545541(Top 20%)5018(Top 31%)5018(Top 223%)
30K18.64 mi3.11 mi5592+75114+295114+295695(Top 20%)5085(Top 32%)5085(Top 226%)
20M20.00 mi1.36 mi5558+345077+375077+375174(Top 18%)4604(Top 29%)4604(Top 205%)
21M21.00 mi1.00 mi5458+1004985+924985+924429(Top 16%)3947(Top 25%)3947(Top 176%)
35K21.75 mi0.75 mi5363+954897+884897+884069(Top 14%)3644(Top 23%)3644(Top 162%)
23M23.00 mi1.25 mi5224+1394767+1304767+1303833(Top 13%)3446(Top 21%)3446(Top 153%)
24M24.00 mi1.00 mi5120+1044671+964671+963597(Top 13%)3216(Top 20%)3216(Top 143%)
40K24.85 mi0.85 mi5047+734602+694602+693998(Top 14%)3486(Top 22%)3486(Top 155%)
25.2M25.20 mi0.35 mi5014+334571+314571+314005(Top 14%)3421(Top 21%)3421(Top 152%)
Finish26.22 mi1.02 mi4912+1024475+964475+963284(Top 12%)2892(Top 18%)2892(Top 129%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21stories
+97ft-345ft

Overall

5722

Males

5217

M40-44

5217

5K→10K

3.1 - 6.2 mi

Top 20%
×5stories
+79ft-138ft

Overall

5580

Males

5129

M40-44

5129

10K→15K

6.2 - 9.3 mi

Top 20%
×3stories
+67ft-78ft

Overall

5722

Males

5217

M40-44

5217

15K→20K

9.3 - 12.4 mi

Top 21%
×5stories
+106ft-86ft

Overall

5906

Males

5354

M40-44

5354

20K→Half

12.4 - 13.1 mi

Top 21%
×2stories
+19ft-37ft

Overall

5995

Males

5416

M40-44

5416

Half→25K

13.1 - 15.5 mi

Top 20%
×4stories
+66ft-88ft

Overall

5541

Males

5018

M40-44

5018

25K→30K

15.5 - 18.6 mi

Top 20%
×9stories
+181ft-148ft

Overall

5695

Males

5085

M40-44

5085

30K→20M

18.6 - 20.0 mi

Top 18%
×5stories
+64ft-50ft

Overall

5174

Males

4604

M40-44

4604

20M→21M

20.0 - 21.0 mi

Top 16%
×8stories
+106ft-24ft

Overall

4429

Males

3947

M40-44

3947

21M→35K

21.0 - 21.8 mi

Top 14%
×7stories
+17ft-86ft

Overall

4069

Males

3644

M40-44

3644

35K→23M

21.8 - 23.0 mi

Top 13%
×5stories
+23ft-63ft

Overall

3833

Males

3446

M40-44

3446

23M→24M

23.0 - 24.0 mi

Top 13%
×6stories
+12ft-82ft

Overall

3597

Males

3216

M40-44

3216

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

3998

Males

3486

M40-44

3486

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

4005

Males

3421

M40-44

3421

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2stories
+22ft-21ft

Overall

3284

Males

2892

M40-44

2892

Passing Analysis

Category:
Athletes Passed
1543
Passed By
922
Net Change
+621
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5533
5K → 10K172185-13#5533#5546
10K → 15K116133-17#5546#5563
15K → 20K104186-82#5563#5645
20K → Half1629-13#5645#5658
Half → 25K13980+59#5658#5599
25K → 30K189182+7#5599#5592
30K → 20M8349+34#5592#5558
20M → 21M11717+100#5558#5458
21M → 35K1038+95#5458#5363
35K → 23M15516+139#5363#5224
23M → 24M1128+104#5224#5120
24M → 40K8916+73#5120#5047
40K → 25.2M385+33#5047#5014
25.2M → Finish1108+102#5014#4912
TOTALS1543922+621
📊

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