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BOSTON MARATHON 2025

Robert Laessing

Bib: 8014•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 31%
Gender (Male)
#0 / 16105
Top 44%
Masters (Masters Men)
#0 / 10463
Top 32%
Division (M40-44)
#0 / 2247
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:34
Rank: #10000
Start → 5K
22:34 | 7:16/mi
10K· 6.21 mi
45:23
Rank: #10361 (-361)
5K → 10K
22:49 | 7:21/mi
15K· 9.32 mi
1:08:51
Rank: #10936 (-575)
10K → 15K
23:28 | 7:33/mi
20K· 12.43 mi
1:31:17
Rank: #10258 (+678)
15K → 20K
22:26 | 7:13/mi
Half· 13.11 mi
1:36:06
Rank: #10136 (+122)
20K → Half
4:49 | 7:04/mi
25K· 15.53 mi
1:54:02
Rank: #9905 (+231)
Half → 25K
17:56 | 7:24/mi
30K· 18.64 mi
2:17:00
Rank: #9269 (+636)
25K → 30K
22:58 | 7:24/mi
20M
2:27:15
Rank: #9082 (+187)
30K → 20M
10:15 | 7:33/mi
21M
2:35:15
Rank: #8922 (+160)
20M → 21M
8:00 | 8:00/mi
35K· 21.75 mi
2:40:50
Rank: #8866 (+56)
21M → 35K
5:35 | 7:28/mi
23M
2:50:32
Rank: #8767 (+99)
35K → 23M
9:42 | 7:45/mi
24M
2:58:17
Rank: #8766 (+1)
23M → 24M
7:45 | 7:45/mi
40K· 24.85 mi
3:05:02
Rank: #8758 (+8)
24M → 40K
6:45 | 7:54/mi
25.2M
3:08:01
Rank: #8750 (+8)
40K → 25.2M
2:59 | 8:39/mi
Finish· 26.22 mi
3:15:36
Rank: #8747 (+3)
25.2M → Finish
7:35 | 7:26/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:06
Pace7:20 /mi
2nd Half
Distance13.11 mi
Time1:39:30
Pace7:35 /mi
📊Positive Split: 3.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:30:3022:347:1622:34
7:16
-
10K
6.21 mi10:53:1945:237:1822:49
7:21
+0:05
15K
9.32 mi11:16:471:08:517:2323:28
7:33
+0:12
20K
12.43 mi11:39:131:31:177:2122:26
7:13
-0:20
Half
13.11 mi11:44:021:36:067:204:49
7:04
-0:09
25K
15.53 mi12:01:581:54:027:2017:56
7:24
+0:20
30K
18.64 mi12:24:562:17:007:2122:58
7:24
0:00
20M
20.00 mi12:35:112:27:157:2210:15
7:33
+0:09
21M
21.00 mi12:43:112:35:157:248:00
8:00
+0:27
35K
21.75 mi12:48:462:40:507:245:35
7:28
-0:32
23M
23.00 mi12:58:282:50:327:259:42
7:45
+0:17
24M
24.00 mi13:06:132:58:177:267:45
7:45
0:00
40K
24.85 mi13:12:583:05:027:276:45
7:54
+0:09
25.2M
25.20 mi13:15:573:08:017:282:59
8:39
+0:45
Finish
26.22 mi13:23:323:15:367:287:35
7:26
-1:13

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

7:04 /mi

Average Pace

7:28 /mi

Slowest Pace

8:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

49:49

25% of race

Time at Steady Pace

1:50:36

57% of race

Time at Slower Pace

35:11

18% of race

Average Pace: 7:28 /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 mi10:30:3022:347:1622:34
7:16
#10000
10K
6.21 mi10:53:1945:237:1822:49
7:21
#10361
15K
9.32 mi11:16:471:08:517:2323:28
7:33
#10936
20K
12.43 mi11:39:131:31:177:2122:26
7:13
#10258
Half
13.11 mi11:44:021:36:067:204:49
7:04
#10136
25K
15.53 mi12:01:581:54:027:2017:56
7:24
#9905
30K
18.64 mi12:24:562:17:007:2122:58
7:24
#9269
20M
20.00 mi12:35:112:27:157:2210:15
7:33
#9082
21M
21.00 mi12:43:112:35:157:248:00
8:00
#8922
35K
21.75 mi12:48:462:40:507:245:35
7:28
#8866
23M
23.00 mi12:58:282:50:327:259:42
7:45
#8767
24M
24.00 mi13:06:132:58:177:267:45
7:45
#8766
40K
24.85 mi13:12:583:05:027:276:45
7:54
#8758
25.2M
25.20 mi13:15:573:08:017:282:59
8:39
#8750
Finish
26.22 mi13:23:323:15:367:287:35
7:26
#8747
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi100008166816612195(Top 43%)9140(Top 57%)9140(Top 407%)
10K6.21 mi3.10 mi10361-3618350-1848350-18410679(Top 38%)8498(Top 53%)8498(Top 378%)
15K9.32 mi3.11 mi10936-5758621-2718621-27112195(Top 43%)9140(Top 57%)9140(Top 407%)
20K12.43 mi3.11 mi10258+6788238+3838238+3838372(Top 29%)7093(Top 44%)7093(Top 316%)
Half13.11 mi0.68 mi10136+1228177+618177+618000(Top 28%)6901(Top 43%)6901(Top 307%)
25K15.53 mi2.42 mi9905+2318018+1598018+1599110(Top 32%)7402(Top 46%)7402(Top 329%)
30K18.64 mi3.11 mi9269+6367615+4037615+4037008(Top 25%)5979(Top 37%)5979(Top 266%)
20M20.00 mi1.36 mi9082+1877482+1337482+1337306(Top 26%)6030(Top 37%)6030(Top 268%)
21M21.00 mi1.00 mi8922+1607355+1277355+1277341(Top 26%)5876(Top 36%)5876(Top 262%)
35K21.75 mi0.75 mi8866+567303+527303+528345(Top 29%)6509(Top 40%)6509(Top 290%)
23M23.00 mi1.25 mi8767+997206+977206+978199(Top 29%)6283(Top 39%)6283(Top 280%)
24M24.00 mi1.00 mi8766+17167+397167+399432(Top 33%)6866(Top 43%)6866(Top 306%)
40K24.85 mi0.85 mi8758+87119+487119+489401(Top 33%)6741(Top 42%)6741(Top 300%)
25.2M25.20 mi0.35 mi8750+87102+177102+179656(Top 34%)6775(Top 42%)6775(Top 302%)
Finish26.22 mi1.02 mi8747+37069+337069+338764(Top 31%)6318(Top 39%)6318(Top 281%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21stories
+97ft-345ft

Overall

12195

Males

9140

M40-44

9140

5K→10K

3.1 - 6.2 mi

Top 38%
×5stories
+79ft-138ft

Overall

10679

Males

8498

M40-44

8498

10K→15K

6.2 - 9.3 mi

Top 43%
×3stories
+67ft-78ft

Overall

12195

Males

9140

M40-44

9140

15K→20K

9.3 - 12.4 mi

Top 29%
×5stories
+106ft-86ft

Overall

8372

Males

7093

M40-44

7093

20K→Half

12.4 - 13.1 mi

Top 28%
×2stories
+19ft-37ft

Overall

8000

Males

6901

M40-44

6901

Half→25K

13.1 - 15.5 mi

Top 32%
×4stories
+66ft-88ft

Overall

9110

Males

7402

M40-44

7402

25K→30K

15.5 - 18.6 mi

Top 25%
×9stories
+181ft-148ft

Overall

7008

Males

5979

M40-44

5979

30K→20M

18.6 - 20.0 mi

Top 26%
×5stories
+64ft-50ft

Overall

7306

Males

6030

M40-44

6030

20M→21M

20.0 - 21.0 mi

Top 26%
×8stories
+106ft-24ft

Overall

7341

Males

5876

M40-44

5876

21M→35K

21.0 - 21.8 mi

Top 29%
×7stories
+17ft-86ft

Overall

8345

Males

6509

M40-44

6509

35K→23M

21.8 - 23.0 mi

Top 29%
×5stories
+23ft-63ft

Overall

8199

Males

6283

M40-44

6283

23M→24M

23.0 - 24.0 mi

Top 33%
×6stories
+12ft-82ft

Overall

9432

Males

6866

M40-44

6866

24M→40K

24.0 - 24.9 mi

Top 33%
×1story
+6ft-20ft

Overall

9401

Males

6741

M40-44

6741

40K→25.2M

24.9 - 25.2 mi

Top 34%
×1story
+13ft-16ft

Overall

9656

Males

6775

M40-44

6775

25.2M→Finish

25.2 - 26.2 mi

Top 31%
×2stories
+22ft-21ft

Overall

8764

Males

6318

M40-44

6318

Passing Analysis

Category:
Athletes Passed
2816*
Passed By
1562
Net Change
+1253
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10000
5K → 10K104464-361#10000#10361
10K → 15K67642-575#10361#10936
15K → 20K6813+678#10936#10258
20K → Half1242+122#10258#10136
Half → 25K264*33+231#10136#9905
25K → 30K6459+636#9905#9269
30K → 20M20922+187#9269#9082
20M → 21M18222+160#9082#8922
21M → 35K8933+56#8922#8866
35K → 23M16061+99#8866#8767
23M → 24M8180+1#8767#8766
24M → 40K9082+8#8766#8758
40K → 25.2M4133+8#8758#8750
25.2M → Finish7976+3#8750#8747
TOTALS2816*1562+1253

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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