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BOSTON MARATHON 2025

Len Lorentz

Bib: 11011•M

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 41%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 43%
Division (M55-59)
#0 / 1648
Top 27%
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
7:48/mi
24:14
↑ 97↓ 3451.5%
10K· 6.21 mi
7:45/mi
48:19
↑ 79↓ 1380.4%
15K· 9.32 mi
7:46/mi
1:12:26
↑ 67↓ 78
20K· 12.43 mi
7:44/mi
1:36:29
↑ 106↓ 860.1%
Half· 13.11 mi
7:36/mi
1:41:40
↑ 19↓ 370.5%
25K· 15.53 mi
7:46/mi
2:00:31
↑ 66↓ 880.2%
30K· 18.64 mi
7:56/mi
2:25:10
↑ 181↓ 1480.2%
20M
8:02/mi
2:36:05
↑ 64↓ 500.2%
21M
8:18/mi
2:44:23
↑ 106↓ 241.6%
35K· 21.75 mi
7:44/mi
2:50:10
↑ 17↓ 861.7%
23M
7:56/mi
3:00:06
↑ 23↓ 630.6%
24M
7:33/mi
3:07:39
↓ 821.3%
40K· 24.85 mi
7:41/mi
3:14:13
↓ 200.3%
25.2M
8:27/mi
3:17:08
↑ 13↓ 160.2%
Finish· 26.22 mi
7:25/mi
3:24:41
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:40
Pace7:45 /mi
2nd Half
Distance13.11 mi
Time1:43:01
Pace7:52 /mi
📊Positive Split: 1.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:5624:147:4824:14
7:48
-
10K
6.21 mi11:18:0148:197:4724:05
7:45
-0:03
15K
9.32 mi11:42:081:12:267:4624:07
7:46
+0:01
20K
12.43 mi12:06:111:36:297:4624:03
7:44
-0:02
Half
13.11 mi12:11:221:41:407:455:11
7:36
-0:08
25K
15.53 mi12:30:132:00:317:4518:51
7:46
+0:10
30K
18.64 mi12:54:522:25:107:4724:39
7:56
+0:10
20M
20.00 mi13:05:472:36:057:4810:55
8:02
+0:06
21M
21.00 mi13:14:052:44:237:508:18
8:18
+0:16
35K
21.75 mi13:19:522:50:107:495:47
7:44
-0:34
23M
23.00 mi13:29:483:00:067:509:56
7:56
+0:12
24M
24.00 mi13:37:213:07:397:497:33
7:33
-0:23
40K
24.85 mi13:43:553:14:137:496:34
7:41
+0:08
25.2M
25.20 mi13:46:503:17:087:492:55
8:27
+0:46
Finish
26.22 mi13:54:233:24:417:497:33
7:25
-1:02

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

7:25 /mi

Average Pace

7:49 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:13:28

95% of race

Time at Steady Pace

11:13

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:48 /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 mi10:53:5624:147:4824:14
7:48
#14791
10K
6.21 mi11:18:0148:197:4724:05
7:45
#14539
15K
9.32 mi11:42:081:12:267:4624:07
7:46
#14378
20K
12.43 mi12:06:111:36:297:4624:03
7:44
#13928
Half
13.11 mi12:11:221:41:407:455:11
7:36
#13848
25K
15.53 mi12:30:132:00:317:4518:51
7:46
#13506
30K
18.64 mi12:54:522:25:107:4724:39
7:56
#12967
20M
20.00 mi13:05:472:36:057:4810:55
8:02
#12762
21M
21.00 mi13:14:052:44:237:508:18
8:18
#12513
35K
21.75 mi13:19:522:50:107:495:47
7:44
#12409
23M
23.00 mi13:29:483:00:067:509:56
7:56
#12209
24M
24.00 mi13:37:213:07:397:497:33
7:33
#11987
40K
24.85 mi13:43:553:14:137:496:34
7:41
#11800
25.2M
25.20 mi13:46:503:17:087:492:55
8:27
#11744
Finish
26.22 mi13:54:233:24:417:497:33
7:25
#11574
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi14791103381033814018(Top 49%)9947(Top 62%)9947(Top 604%)
10K6.21 mi3.10 mi14539+25210233+10510233+10514326(Top 50%)10129(Top 63%)10129(Top 615%)
15K9.32 mi3.11 mi14378+16110145+8810145+8814018(Top 49%)9947(Top 62%)9947(Top 604%)
20K12.43 mi3.11 mi13928+4509924+2219924+22112742(Top 45%)9296(Top 58%)9296(Top 564%)
Half13.11 mi0.68 mi13848+809871+539871+5312490(Top 44%)9220(Top 57%)9220(Top 559%)
25K15.53 mi2.42 mi13506+3429694+1779694+17712110(Top 43%)8905(Top 55%)8905(Top 540%)
30K18.64 mi3.11 mi12967+5399402+2929402+29210895(Top 38%)8141(Top 51%)8141(Top 494%)
20M20.00 mi1.36 mi12762+2059278+1249278+12410653(Top 38%)7861(Top 49%)7861(Top 477%)
21M21.00 mi1.00 mi12513+2499135+1439135+1439217(Top 32%)6947(Top 43%)6947(Top 422%)
35K21.75 mi0.75 mi12409+1049061+749061+7410288(Top 36%)7522(Top 47%)7522(Top 456%)
23M23.00 mi1.25 mi12209+2008933+1288933+1289531(Top 34%)7002(Top 43%)7002(Top 425%)
24M24.00 mi1.00 mi11987+2228792+1418792+1418057(Top 28%)6152(Top 38%)6152(Top 373%)
40K24.85 mi0.85 mi11800+1878670+1228670+1227958(Top 28%)5978(Top 37%)5978(Top 363%)
25.2M25.20 mi0.35 mi11744+568629+418629+418547(Top 30%)6232(Top 39%)6232(Top 378%)
Finish26.22 mi1.02 mi11574+1708502+1278502+1278544(Top 30%)6216(Top 39%)6216(Top 377%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21story building
+97ft-345ft

Overall

14018

Males

9947

M55-59

9947

5K→10K

3.1 - 6.2 mi

Top 50%
×5story building
+79ft-138ft

Overall

14326

Males

10129

M55-59

10129

10K→15K

6.2 - 9.3 mi

Top 49%
×3story building
+67ft-78ft

Overall

14018

Males

9947

M55-59

9947

15K→20K

9.3 - 12.4 mi

Top 45%
×5story building
+106ft-86ft

Overall

12742

Males

9296

M55-59

9296

20K→Half

12.4 - 13.1 mi

Top 44%
×2story building
+19ft-37ft

Overall

12490

Males

9220

M55-59

9220

Half→25K

13.1 - 15.5 mi

Top 43%
×4story building
+66ft-88ft

Overall

12110

Males

8905

M55-59

8905

25K→30K

15.5 - 18.6 mi

Top 38%
×9story building
+181ft-148ft

Overall

10895

Males

8141

M55-59

8141

30K→20M

18.6 - 20.0 mi

Top 38%
×5story building
+64ft-50ft

Overall

10653

Males

7861

M55-59

7861

20M→21M

20.0 - 21.0 mi

Top 32%
×8story building
+106ft-24ft

Overall

9217

Males

6947

M55-59

6947

21M→35K

21.0 - 21.8 mi

Top 36%
×7story building
+17ft-86ft

Overall

10288

Males

7522

M55-59

7522

35K→23M

21.8 - 23.0 mi

Top 34%
×5story building
+23ft-63ft

Overall

9531

Males

7002

M55-59

7002

23M→24M

23.0 - 24.0 mi

Top 28%
×6story building
+12ft-82ft

Overall

8057

Males

6152

M55-59

6152

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7958

Males

5978

M55-59

5978

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

8547

Males

6232

M55-59

6232

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2story building
+22ft-21ft

Overall

8544

Males

6216

M55-59

6216

Passing Analysis

Category:
Athletes Passed
3721
Passed By
504
Net Change
+3217
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14791
5K → 10K431179+252#14791#14539
10K → 15K278117+161#14539#14378
15K → 20K47323+450#14378#13928
20K → Half888+80#13928#13848
Half → 25K37230+342#13848#13506
25K → 30K57132+539#13506#12967
30K → 20M23328+205#12967#12762
20M → 21M2578+249#12762#12513
21M → 35K11915+104#12513#12409
35K → 23M21818+200#12409#12209
23M → 24M2253+222#12209#11987
24M → 40K1958+187#11987#11800
40K → 25.2M6812+56#11800#11744
25.2M → Finish19323+170#11744#11574
TOTALS3721504+3217
📊

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