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BOSTON MARATHON 2025

Jonathan Labrum

Bib: 4917•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 15%
Gender (Male)
#0 / 16105
Top 24%
Masters (Masters Men)
#0 / 10463
Top 11%
Division (M40-44)
#0 / 2247
Top 29%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:01
Rank: #6042
Start → 5K
21:01 | 6:46/mi
10K· 6.21 mi
42:06
Rank: #6058 (-16)
5K → 10K
21:05 | 6:47/mi
15K· 9.32 mi
1:03:09
Rank: #5949 (+109)
10K → 15K
21:03 | 6:47/mi
20K· 12.43 mi
1:24:15
Rank: #5757 (+192)
15K → 20K
21:06 | 6:47/mi
Half· 13.11 mi
1:28:50
Rank: #5743 (+14)
20K → Half
4:35 | 6:43/mi
25K· 15.53 mi
1:45:23
Rank: #5572 (+171)
Half → 25K
16:33 | 6:50/mi
30K· 18.64 mi
2:07:21
Rank: #5433 (+139)
25K → 30K
21:58 | 7:04/mi
20M
2:16:59
Rank: #5359 (+74)
30K → 20M
9:38 | 7:05/mi
21M
2:24:20
Rank: #5219 (+140)
20M → 21M
7:21 | 7:21/mi
35K· 21.75 mi
2:29:31
Rank: #5185 (+34)
21M → 35K
5:11 | 6:56/mi
23M
2:38:15
Rank: #5058 (+127)
35K → 23M
8:44 | 6:59/mi
24M
2:44:52
Rank: #4882 (+176)
23M → 24M
6:37 | 6:37/mi
40K· 24.85 mi
2:50:18
Rank: #4634 (+248)
24M → 40K
5:26 | 6:21/mi
25.2M
2:52:40
Rank: #4547 (+87)
40K → 25.2M
2:22 | 6:52/mi
Finish· 26.22 mi
2:58:49
Rank: #4286 (+261)
25.2M → Finish
6:09 | 6:02/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:50
Pace6:47 /mi
2nd Half
Distance13.11 mi
Time1:29:59
Pace6:52 /mi
📊Positive Split: 1.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:5421:016:4621:01
6:46
-
10K
6.21 mi10:46:5942:066:4721:05
6:47
+0:01
15K
9.32 mi11:08:021:03:096:4721:03
6:47
0:00
20K
12.43 mi11:29:081:24:156:4721:06
6:47
0:00
Half
13.11 mi11:33:431:28:506:474:35
6:43
-0:04
25K
15.53 mi11:50:161:45:236:4716:33
6:50
+0:07
30K
18.64 mi12:12:142:07:216:5021:58
7:04
+0:14
20M
20.00 mi12:21:522:16:596:519:38
7:05
+0:01
21M
21.00 mi12:29:132:24:206:527:21
7:21
+0:16
35K
21.75 mi12:34:242:29:316:525:11
6:56
-0:25
23M
23.00 mi12:43:082:38:156:538:44
6:59
+0:03
24M
24.00 mi12:49:452:44:526:526:37
6:37
-0:22
40K
24.85 mi12:55:112:50:186:515:26
6:21
-0:16
25.2M
25.20 mi12:57:332:52:406:512:22
6:52
+0:31
Finish
26.22 mi13:03:422:58:496:506:09
6:02
-0:50

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

6:02 /mi

Average Pace

6:50 /mi

Slowest Pace

7:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

18:12

10% of race

Time at Steady Pace

1:47:45

60% of race

Time at Slower Pace

52:52

30% of race

Average Pace: 6:49 /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 mi10:25:5421:016:4621:01
6:46
#6042
10K
6.21 mi10:46:5942:066:4721:05
6:47
#6058
15K
9.32 mi11:08:021:03:096:4721:03
6:47
#5949
20K
12.43 mi11:29:081:24:156:4721:06
6:47
#5757
Half
13.11 mi11:33:431:28:506:474:35
6:43
#5743
25K
15.53 mi11:50:161:45:236:4716:33
6:50
#5572
30K
18.64 mi12:12:142:07:216:5021:58
7:04
#5433
20M
20.00 mi12:21:522:16:596:519:38
7:05
#5359
21M
21.00 mi12:29:132:24:206:527:21
7:21
#5219
35K
21.75 mi12:34:242:29:316:525:11
6:56
#5185
23M
23.00 mi12:43:082:38:156:538:44
6:59
#5058
24M
24.00 mi12:49:452:44:526:526:37
6:37
#4882
40K
24.85 mi12:55:112:50:186:515:26
6:21
#4634
25.2M
25.20 mi12:57:332:52:406:512:22
6:52
#4547
Finish
26.22 mi13:03:422:58:496:506:09
6:02
#4286
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi6042555055505833(Top 21%)5316(Top 33%)5316(Top 237%)
10K6.21 mi3.10 mi6058-165557-75557-76235(Top 22%)5672(Top 35%)5672(Top 252%)
15K9.32 mi3.11 mi5949+1095454+1035454+1035833(Top 21%)5316(Top 33%)5316(Top 237%)
20K12.43 mi3.11 mi5757+1925286+1685286+1685210(Top 18%)4799(Top 30%)4799(Top 214%)
Half13.11 mi0.68 mi5743+145271+155271+155449(Top 19%)5004(Top 31%)5004(Top 223%)
25K15.53 mi2.42 mi5572+1715119+1525119+1525071(Top 18%)4648(Top 29%)4648(Top 207%)
30K18.64 mi3.11 mi5433+1394983+1364983+1365148(Top 18%)4660(Top 29%)4660(Top 207%)
20M20.00 mi1.36 mi5359+744907+764907+764620(Top 16%)4190(Top 26%)4190(Top 186%)
21M21.00 mi1.00 mi5219+1404784+1234784+1233876(Top 14%)3526(Top 22%)3526(Top 157%)
35K21.75 mi0.75 mi5185+344750+344750+344917(Top 17%)4329(Top 27%)4329(Top 193%)
23M23.00 mi1.25 mi5058+1274631+1194631+1193632(Top 13%)3288(Top 20%)3288(Top 146%)
24M24.00 mi1.00 mi4882+1764473+1584473+1582588(Top 9%)2382(Top 15%)2382(Top 106%)
40K24.85 mi0.85 mi4634+2484257+2164257+2161138(Top 4%)1067(Top 7%)1067(Top 47%)
25.2M25.20 mi0.35 mi4547+874174+834174+831177(Top 4%)1087(Top 7%)1087(Top 48%)
Finish26.22 mi1.02 mi4286+2613943+2313943+2311029(Top 4%)967(Top 6%)967(Top 43%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21stories
+97ft-345ft

Overall

5833

Males

5316

M40-44

5316

5K→10K

3.1 - 6.2 mi

Top 22%
×5stories
+79ft-138ft

Overall

6235

Males

5672

M40-44

5672

10K→15K

6.2 - 9.3 mi

Top 21%
×3stories
+67ft-78ft

Overall

5833

Males

5316

M40-44

5316

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

5210

Males

4799

M40-44

4799

20K→Half

12.4 - 13.1 mi

Top 19%
×2stories
+19ft-37ft

Overall

5449

Males

5004

M40-44

5004

Half→25K

13.1 - 15.5 mi

Top 18%
×4stories
+66ft-88ft

Overall

5071

Males

4648

M40-44

4648

25K→30K

15.5 - 18.6 mi

Top 18%
×9stories
+181ft-148ft

Overall

5148

Males

4660

M40-44

4660

30K→20M

18.6 - 20.0 mi

Top 16%
×5stories
+64ft-50ft

Overall

4620

Males

4190

M40-44

4190

20M→21M

20.0 - 21.0 mi

Top 14%
×8stories
+106ft-24ft

Overall

3876

Males

3526

M40-44

3526

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4917

Males

4329

M40-44

4329

35K→23M

21.8 - 23.0 mi

Top 13%
×5stories
+23ft-63ft

Overall

3632

Males

3288

M40-44

3288

23M→24M

23.0 - 24.0 mi

Top 9%
×6stories
+12ft-82ft

Overall

2588

Males

2382

M40-44

2382

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1138

Males

1067

M40-44

1067

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1177

Males

1087

M40-44

1087

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

1029

Males

967

M40-44

967

Passing Analysis

Category:
Athletes Passed
2323
Passed By
567
Net Change
+1756
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6042
5K → 10K170186-16#6042#6058
10K → 15K19182+109#6058#5949
15K → 20K24048+192#5949#5757
20K → Half2915+14#5757#5743
Half → 25K19928+171#5743#5572
25K → 30K23798+139#5572#5433
30K → 20M12046+74#5433#5359
20M → 21M15717+140#5359#5219
21M → 35K5521+34#5219#5185
35K → 23M14821+127#5185#5058
23M → 24M1782+176#5058#4882
24M → 40K2491+248#4882#4634
40K → 25.2M892+87#4634#4547
25.2M → Finish2610+261#4547#4286
TOTALS2323567+1756
📊

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