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BOSTON MARATHON 2025

Raymond Lam

Bib: 3444•M

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 12%
Gender (Male)
#0 / 16105
Top 19%
Division (M18-39)
#0 / 5642
Top 42%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:31
Rank: #2318
Start → 5K
19:31 | 6:17/mi
10K· 6.21 mi
38:54
Rank: #2185 (+133)
5K → 10K
19:23 | 6:14/mi
15K· 9.32 mi
58:30
Rank: #2233 (-48)
10K → 15K
19:36 | 6:19/mi
20K· 12.43 mi
1:18:52
Rank: #2528 (-295)
15K → 20K
20:22 | 6:33/mi
Half· 13.11 mi
1:23:05
Rank: #2488 (+40)
20K → Half
4:13 | 6:11/mi
25K· 15.53 mi
1:39:02
Rank: #2599 (-111)
Half → 25K
15:57 | 6:35/mi
30K· 18.64 mi
2:01:07
Rank: #3023 (-424)
25K → 30K
22:05 | 7:06/mi
20M
2:10:47
Rank: #3094 (-71)
30K → 20M
9:40 | 7:07/mi
21M
2:18:33
Rank: #3214 (-120)
20M → 21M
7:46 | 7:46/mi
35K· 21.75 mi
2:23:31
Rank: #3189 (+25)
21M → 35K
4:58 | 6:38/mi
23M
2:32:27
Rank: #3215 (-26)
35K → 23M
8:56 | 7:08/mi
24M
2:38:58
Rank: #3120 (+95)
23M → 24M
6:31 | 6:31/mi
40K· 24.85 mi
2:44:57
Rank: #3103 (+17)
24M → 40K
5:59 | 7:00/mi
25.2M
2:47:44
Rank: #3131 (-28)
40K → 25.2M
2:47 | 8:04/mi
Finish· 26.22 mi
2:55:06
Rank: #3271 (-140)
25.2M → Finish
7:22 | 7:14/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:05
Pace6:20 /mi
2nd Half
Distance13.11 mi
Time1:32:01
Pace7:01 /mi
📊Positive Split: 10.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:2919:316:1719:31
6:17
-
10K
6.21 mi10:41:5238:546:1619:23
6:14
-0:03
15K
9.32 mi11:01:2858:306:1719:36
6:19
+0:05
20K
12.43 mi11:21:501:18:526:2120:22
6:33
+0:14
Half
13.11 mi11:26:031:23:056:204:13
6:11
-0:22
25K
15.53 mi11:42:001:39:026:2315:57
6:35
+0:24
30K
18.64 mi12:04:052:01:076:3022:05
7:06
+0:31
20M
20.00 mi12:13:452:10:476:329:40
7:07
+0:01
21M
21.00 mi12:21:312:18:336:367:46
7:46
+0:39
35K
21.75 mi12:26:292:23:316:364:58
6:38
-1:08
23M
23.00 mi12:35:252:32:276:388:56
7:08
+0:30
24M
24.00 mi12:41:562:38:586:376:31
6:31
-0:37
40K
24.85 mi12:47:552:44:576:385:59
7:00
+0:29
25.2M
25.20 mi12:50:422:47:446:392:47
8:04
+1:04
Finish
26.22 mi12:58:042:55:066:417:22
7:14
-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

6:11 /mi

Average Pace

6:41 /mi

Slowest Pace

8:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:02:43

36% of race

Time at Steady Pace

47:48

27% of race

Time at Slower Pace

1:04:35

37% of race

Average Pace: 6:41 /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 mi10:22:2919:316:1719:31
6:17
#2318
10K
6.21 mi10:41:5238:546:1619:23
6:14
#2185
15K
9.32 mi11:01:2858:306:1719:36
6:19
#2233
20K
12.43 mi11:21:501:18:526:2120:22
6:33
#2528
Half
13.11 mi11:26:031:23:056:204:13
6:11
#2488
25K
15.53 mi11:42:001:39:026:2315:57
6:35
#2599
30K
18.64 mi12:04:052:01:076:3022:05
7:06
#3023
20M
20.00 mi12:13:452:10:476:329:40
7:07
#3094
21M
21.00 mi12:21:312:18:336:367:46
7:46
#3214
35K
21.75 mi12:26:292:23:316:364:58
6:38
#3189
23M
23.00 mi12:35:252:32:276:388:56
7:08
#3215
24M
24.00 mi12:41:562:38:586:376:31
6:31
#3120
40K
24.85 mi12:47:552:44:576:385:59
7:00
#3103
25.2M
25.20 mi12:50:422:47:446:392:47
8:04
#3131
Finish
26.22 mi12:58:042:55:066:417:22
7:14
#3271
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2318221222122377(Top 8%)2267(Top 14%)2267(Top 40%)
10K6.21 mi3.10 mi2185+1332085+1272085+1272093(Top 7%)1996(Top 12%)1996(Top 35%)
15K9.32 mi3.11 mi2233-482132-472132-472377(Top 8%)2267(Top 14%)2267(Top 40%)
20K12.43 mi3.11 mi2528-2952412-2802412-2803443(Top 12%)3261(Top 20%)3261(Top 58%)
Half13.11 mi0.68 mi2488+402375+372375+371890(Top 7%)1803(Top 11%)1803(Top 32%)
25K15.53 mi2.42 mi2599-1112481-1062481-1063322(Top 12%)3141(Top 20%)3141(Top 56%)
30K18.64 mi3.11 mi3023-4242878-3972878-3975344(Top 19%)4810(Top 30%)4810(Top 85%)
20M20.00 mi1.36 mi3094-712936-582936-584712(Top 17%)4253(Top 26%)4253(Top 75%)
21M21.00 mi1.00 mi3214-1203042-1063042-1065961(Top 21%)5032(Top 31%)5032(Top 89%)
35K21.75 mi0.75 mi3189+253016+263016+263136(Top 11%)2878(Top 18%)2878(Top 51%)
23M23.00 mi1.25 mi3215-263034-183034-184501(Top 16%)3952(Top 25%)3952(Top 70%)
24M24.00 mi1.00 mi3120+952945+892945+892120(Top 7%)1967(Top 12%)1967(Top 35%)
40K24.85 mi0.85 mi3103+172928+172928+173844(Top 14%)3363(Top 21%)3363(Top 60%)
25.2M25.20 mi0.35 mi3131-282947-192947-196203(Top 22%)4836(Top 30%)4836(Top 86%)
Finish26.22 mi1.02 mi3271-1403065-1183065-1187175(Top 25%)5422(Top 34%)5422(Top 96%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2377

Males

2267

M18-39

2267

5K→10K

3.1 - 6.2 mi

Top 7%
×5stories
+79ft-138ft

Overall

2093

Males

1996

M18-39

1996

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2377

Males

2267

M18-39

2267

15K→20K

9.3 - 12.4 mi

Top 12%
×5stories
+106ft-86ft

Overall

3443

Males

3261

M18-39

3261

20K→Half

12.4 - 13.1 mi

Top 7%
×2stories
+19ft-37ft

Overall

1890

Males

1803

M18-39

1803

Half→25K

13.1 - 15.5 mi

Top 12%
×4stories
+66ft-88ft

Overall

3322

Males

3141

M18-39

3141

25K→30K

15.5 - 18.6 mi

Top 19%
×9stories
+181ft-148ft

Overall

5344

Males

4810

M18-39

4810

30K→20M

18.6 - 20.0 mi

Top 17%
×5stories
+64ft-50ft

Overall

4712

Males

4253

M18-39

4253

20M→21M

20.0 - 21.0 mi

Top 21%
×8stories
+106ft-24ft

Overall

5961

Males

5032

M18-39

5032

21M→35K

21.0 - 21.8 mi

Top 11%
×7stories
+17ft-86ft

Overall

3136

Males

2878

M18-39

2878

35K→23M

21.8 - 23.0 mi

Top 16%
×5stories
+23ft-63ft

Overall

4501

Males

3952

M18-39

3952

23M→24M

23.0 - 24.0 mi

Top 7%
×6stories
+12ft-82ft

Overall

2120

Males

1967

M18-39

1967

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

3844

Males

3363

M18-39

3363

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

6203

Males

4836

M18-39

4836

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2stories
+22ft-21ft

Overall

7175

Males

5422

M18-39

5422

Passing Analysis

Category:
Athletes Passed
689
Passed By
1642
Net Change
-953
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2318
5K → 10K18956+133#2318#2185
10K → 15K4997-48#2185#2233
15K → 20K20315-295#2233#2528
20K → Half422+40#2528#2488
Half → 25K29140-111#2488#2599
25K → 30K29453-424#2599#3023
30K → 20M35106-71#3023#3094
20M → 21M21141-120#3094#3214
21M → 35K4217+25#3214#3189
35K → 23M5581-26#3189#3215
23M → 24M972+95#3215#3120
24M → 40K4932+17#3120#3103
40K → 25.2M1543-28#3103#3131
25.2M → Finish17157-140#3131#3271
TOTALS6891642-953
📊

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