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BOSTON MARATHON 2025

Olaf Lakin

Bib: 12641•M

MN

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M45-49)
#0 / 2386
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:47
Rank: #13557
Start → 5K
23:47 | 7:39/mi
10K· 6.21 mi
47:08
Rank: #12885 (+672)
5K → 10K
23:21 | 7:31/mi
15K· 9.32 mi
1:10:40
Rank: #12703 (+182)
10K → 15K
23:32 | 7:34/mi
20K· 12.43 mi
1:34:57
Rank: #12837 (-134)
15K → 20K
24:17 | 7:49/mi
Half· 13.11 mi
1:40:08
Rank: #12823 (+14)
20K → Half
5:11 | 7:36/mi
25K· 15.53 mi
2:00:37
Rank: #13571 (-748)
Half → 25K
20:29 | 8:27/mi
30K· 18.64 mi
2:26:55
Rank: #13723 (-152)
25K → 30K
26:18 | 8:28/mi
20M
2:39:05
Rank: #13941 (-218)
30K → 20M
12:10 | 8:57/mi
21M
2:49:13
Rank: #14335 (-394)
20M → 21M
10:08 | 10:08/mi
35K· 21.75 mi
2:55:19
Rank: #14289 (+46)
21M → 35K
6:06 | 8:09/mi
23M
3:07:00
Rank: #14527 (-238)
35K → 23M
11:41 | 9:20/mi
24M
3:15:19
Rank: #14468 (+59)
23M → 24M
8:19 | 8:19/mi
40K· 24.85 mi
3:23:08
Rank: #14545 (-77)
24M → 40K
7:49 | 9:09/mi
25.2M
3:26:28
Rank: #14545
40K → 25.2M
3:20 | 9:40/mi
Finish· 26.22 mi
3:35:01
Rank: #14571 (-26)
25.2M → Finish
8:33 | 8:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:08
Pace7:38 /mi
2nd Half
Distance13.11 mi
Time1:54:53
Pace8:46 /mi
📊Positive Split: 14.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:3623:477:3923:47
7:39
-
10K
6.21 mi11:14:5747:087:3523:21
7:31
-0:08
15K
9.32 mi11:38:291:10:407:3523:32
7:34
+0:03
20K
12.43 mi12:02:461:34:577:3824:17
7:49
+0:15
Half
13.11 mi12:07:571:40:087:385:11
7:36
-0:13
25K
15.53 mi12:28:262:00:377:4620:29
8:27
+0:51
30K
18.64 mi12:54:442:26:557:5326:18
8:28
+0:01
20M
20.00 mi13:06:542:39:057:5712:10
8:57
+0:29
21M
21.00 mi13:17:022:49:138:0310:08
10:08
+1:11
35K
21.75 mi13:23:082:55:198:046:06
8:09
-1:59
23M
23.00 mi13:34:493:07:008:0811:41
9:20
+1:11
24M
24.00 mi13:43:083:15:198:088:19
8:19
-1:01
40K
24.85 mi13:50:573:23:088:107:49
9:09
+0:50
25.2M
25.20 mi13:54:173:26:288:123:20
9:40
+0:31
Finish
26.22 mi14:02:503:35:018:128:33
8:23
-1:17

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

7:31 /mi

Average Pace

8:12 /mi

Slowest Pace

10:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:40:08

47% of race

Time at Steady Pace

1:09:45

32% of race

Time at Slower Pace

45:08

21% of race

Average Pace: 8:12 /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 mi10:51:3623:477:3923:47
7:39
#13557
10K
6.21 mi11:14:5747:087:3523:21
7:31
#12885
15K
9.32 mi11:38:291:10:407:3523:32
7:34
#12703
20K
12.43 mi12:02:461:34:577:3824:17
7:49
#12837
Half
13.11 mi12:07:571:40:087:385:11
7:36
#12823
25K
15.53 mi12:28:262:00:377:4620:29
8:27
#13571
30K
18.64 mi12:54:442:26:557:5326:18
8:28
#13723
20M
20.00 mi13:06:542:39:057:5712:10
8:57
#13941
21M
21.00 mi13:17:022:49:138:0310:08
10:08
#14335
35K
21.75 mi13:23:082:55:198:046:06
8:09
#14289
23M
23.00 mi13:34:493:07:008:0811:41
9:20
#14527
24M
24.00 mi13:43:083:15:198:088:19
8:19
#14468
40K
24.85 mi13:50:573:23:088:107:49
9:09
#14545
25.2M
25.20 mi13:54:173:26:288:123:20
9:40
#14545
Finish
26.22 mi14:02:503:35:018:128:33
8:23
#14571
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi135579888988812370(Top 44%)9240(Top 57%)9240(Top 387%)
10K6.21 mi3.10 mi12885+6729569+3199569+31912249(Top 43%)9264(Top 58%)9264(Top 388%)
15K9.32 mi3.11 mi12703+1829461+1089461+10812370(Top 44%)9240(Top 57%)9240(Top 387%)
20K12.43 mi3.11 mi12837-1349453+89453+813398(Top 47%)9604(Top 60%)9604(Top 403%)
Half13.11 mi0.68 mi12823+149436+179436+1712534(Top 44%)9264(Top 58%)9264(Top 388%)
25K15.53 mi2.42 mi13571-7489729-2939729-29316840(Top 59%)11030(Top 68%)11030(Top 462%)
30K18.64 mi3.11 mi13723-1529734-59734-514538(Top 51%)9849(Top 61%)9849(Top 413%)
20M20.00 mi1.36 mi13941-2189792-589792-5816529(Top 58%)10592(Top 66%)10592(Top 444%)
21M21.00 mi1.00 mi14335-3949952-1609952-16018770(Top 66%)11496(Top 71%)11496(Top 482%)
35K21.75 mi0.75 mi14289+469910+429910+4213287(Top 47%)8943(Top 56%)8943(Top 375%)
23M23.00 mi1.25 mi14527-2389984-749984-7417902(Top 63%)10912(Top 68%)10912(Top 457%)
24M24.00 mi1.00 mi14468+599931+539931+5313350(Top 47%)8827(Top 55%)8827(Top 370%)
40K24.85 mi0.85 mi14545-779930+19930+117055(Top 60%)10396(Top 65%)10396(Top 436%)
25.2M25.20 mi0.35 mi145459912+189912+1815381(Top 54%)9576(Top 59%)9576(Top 401%)
Finish26.22 mi1.02 mi14571-269891+219891+2115485(Top 55%)9700(Top 60%)9700(Top 407%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21stories
+97ft-345ft

Overall

12370

Males

9240

M45-49

9240

5K→10K

3.1 - 6.2 mi

Top 43%
×5stories
+79ft-138ft

Overall

12249

Males

9264

M45-49

9264

10K→15K

6.2 - 9.3 mi

Top 44%
×3stories
+67ft-78ft

Overall

12370

Males

9240

M45-49

9240

15K→20K

9.3 - 12.4 mi

Top 47%
×5stories
+106ft-86ft

Overall

13398

Males

9604

M45-49

9604

20K→Half

12.4 - 13.1 mi

Top 44%
×2stories
+19ft-37ft

Overall

12534

Males

9264

M45-49

9264

Half→25K

13.1 - 15.5 mi

Top 59%
×4stories
+66ft-88ft

Overall

16840

Males

11030

M45-49

11030

25K→30K

15.5 - 18.6 mi

Top 51%
×9stories
+181ft-148ft

Overall

14538

Males

9849

M45-49

9849

30K→20M

18.6 - 20.0 mi

Top 58%
×5stories
+64ft-50ft

Overall

16529

Males

10592

M45-49

10592

20M→21M

20.0 - 21.0 mi

Top 66%
×8stories
+106ft-24ft

Overall

18770

Males

11496

M45-49

11496

21M→35K

21.0 - 21.8 mi

Top 47%
×7stories
+17ft-86ft

Overall

13287

Males

8943

M45-49

8943

35K→23M

21.8 - 23.0 mi

Top 63%
×5stories
+23ft-63ft

Overall

17902

Males

10912

M45-49

10912

23M→24M

23.0 - 24.0 mi

Top 47%
×6stories
+12ft-82ft

Overall

13350

Males

8827

M45-49

8827

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

17055

Males

10396

M45-49

10396

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

15381

Males

9576

M45-49

9576

25.2M→Finish

25.2 - 26.2 mi

Top 55%
×2stories
+22ft-21ft

Overall

15485

Males

9700

M45-49

9700

Passing Analysis

Category:
Athletes Passed
1960
Passed By
2974
Net Change
-1014
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13557
5K → 10K73361+672#13557#12885
10K → 15K287105+182#12885#12703
15K → 20K158292-134#12703#12837
20K → Half4329+14#12837#12823
Half → 25K51799-748#12823#13571
25K → 30K198350-152#13571#13723
30K → 20M70288-218#13723#13941
20M → 21M36430-394#13941#14335
21M → 35K8539+46#14335#14289
35K → 23M49287-238#14289#14527
23M → 24M9839+59#14527#14468
24M → 40K57134-77#14468#14545
40K → 25.2M32320#14545#14545
25.2M → Finish6389-26#14545#14571
TOTALS19602974-1014
📊

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