Boston Marathon logo
BOSTON MARATHON 2025

Powei Lin

Bib: 6133•M

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
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
8:30/mi
26:26
↑ 97↓ 3451.5%
10K· 6.21 mi
8:37/mi
53:12
↑ 79↓ 1380.4%
15K· 9.32 mi
8:40/mi
1:20:08
↑ 67↓ 78
20K· 12.43 mi
8:45/mi
1:47:19
↑ 106↓ 860.1%
Half· 13.11 mi
8:39/mi
1:53:13
↑ 19↓ 370.5%
25K· 15.53 mi
9:05/mi
2:15:14
↑ 66↓ 880.2%
30K· 18.64 mi
9:57/mi
2:46:09
↑ 181↓ 1480.2%
20M
10:34/mi
3:00:30
↑ 64↓ 500.2%
21M
11:36/mi
3:12:06
↑ 106↓ 241.6%
35K· 21.75 mi
10:52/mi
3:20:14
↑ 17↓ 861.7%
23M
11:58/mi
3:35:13
↑ 23↓ 630.6%
24M
10:25/mi
3:45:38
↓ 821.3%
40K· 24.85 mi
11:21/mi
3:55:20
↓ 200.3%
25.2M
11:21/mi
3:59:15
↑ 13↓ 160.2%
Finish· 26.22 mi
10:26/mi
4:09:53
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:53:13
Pace8:38 /mi
2nd Half
Distance13.11 mi
Time2:16:40
Pace10:26 /mi
📊Positive Split: 20.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:0126:268:3026:26
8:30
-
10K
6.21 mi11:22:4753:128:3426:46
8:37
+0:07
15K
9.32 mi11:49:431:20:088:3626:56
8:40
+0:03
20K
12.43 mi12:16:541:47:198:3827:11
8:45
+0:05
Half
13.11 mi12:22:481:53:138:385:54
8:39
-0:06
25K
15.53 mi12:44:492:15:148:4222:01
9:05
+0:26
30K
18.64 mi13:15:442:46:098:5530:55
9:57
+0:52
20M
20.00 mi13:30:053:00:309:0114:21
10:34
+0:37
21M
21.00 mi13:41:413:12:069:0911:36
11:36
+1:02
35K
21.75 mi13:49:493:20:149:128:08
10:52
-0:44
23M
23.00 mi14:04:483:35:139:2114:59
11:58
+1:06
24M
24.00 mi14:15:133:45:389:2410:25
10:25
-1:33
40K
24.85 mi14:24:553:55:209:289:42
11:21
+0:56
25.2M
25.20 mi14:28:503:59:159:303:55
11:21
0:00
Finish
26.22 mi14:39:284:09:539:3210:38
10:26
-0:55

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

8:30 /mi

Average Pace

9:32 /mi

Slowest Pace

11:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:15:14

54% of race

Time at Steady Pace

1:14:27

30% of race

Time at Slower Pace

40:12

16% of race

Average Pace: 9:32 /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 mi10:56:0126:268:3026:26
8:30
#19920
10K
6.21 mi11:22:4753:128:3426:46
8:37
#20201
15K
9.32 mi11:49:431:20:088:3626:56
8:40
#20209
20K
12.43 mi12:16:541:47:198:3827:11
8:45
#20059
Half
13.11 mi12:22:481:53:138:385:54
8:39
#20042
25K
15.53 mi12:44:492:15:148:4222:01
9:05
#20089
30K
18.64 mi13:15:442:46:098:5530:55
9:57
#20437
20M
20.00 mi13:30:053:00:309:0114:21
10:34
#20667
21M
21.00 mi13:41:413:12:069:0911:36
11:36
#20862
35K
21.75 mi13:49:493:20:149:128:08
10:52
#21060
23M
23.00 mi14:04:483:35:139:2114:59
11:58
#21456
24M
24.00 mi14:15:133:45:389:2410:25
10:25
#21516
40K
24.85 mi14:24:553:55:209:289:42
11:21
#21631
25.2M
25.20 mi14:28:503:59:159:303:55
11:21
#21628
Finish
26.22 mi14:39:284:09:539:3210:38
10:26
#21717
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi19920124091240920289(Top 71%)12645(Top 79%)12645(Top 224%)
10K6.21 mi3.10 mi20201-28112552-14312552-14320431(Top 72%)12673(Top 79%)12673(Top 225%)
15K9.32 mi3.11 mi20209-812562-1012562-1020289(Top 71%)12645(Top 79%)12645(Top 224%)
20K12.43 mi3.11 mi20059+15012498+6412498+6419676(Top 69%)12323(Top 77%)12323(Top 218%)
Half13.11 mi0.68 mi20042+1712488+1012488+1020051(Top 71%)12492(Top 78%)12492(Top 221%)
25K15.53 mi2.42 mi20089-4712497-912497-920268(Top 71%)12535(Top 78%)12535(Top 222%)
30K18.64 mi3.11 mi20437-34812598-10112598-10121457(Top 76%)12919(Top 80%)12919(Top 229%)
20M20.00 mi1.36 mi20667-23012685-8712685-8722587(Top 80%)13327(Top 83%)13327(Top 236%)
21M21.00 mi1.00 mi20862-19512759-7412759-7422805(Top 80%)13346(Top 83%)13346(Top 237%)
35K21.75 mi0.75 mi21060-19812836-7712836-7723936(Top 84%)13852(Top 86%)13852(Top 246%)
23M23.00 mi1.25 mi21456-39612996-16012996-16025067(Top 88%)14364(Top 89%)14364(Top 255%)
24M24.00 mi1.00 mi21516-6013001-513001-522561(Top 79%)13087(Top 81%)13087(Top 232%)
40K24.85 mi0.85 mi21631-11513022-2113022-2123835(Top 84%)13685(Top 85%)13685(Top 243%)
25.2M25.20 mi0.35 mi21628+313012+1013012+1021660(Top 76%)12617(Top 78%)12617(Top 224%)
Finish26.22 mi1.02 mi21717-8913035-2313035-2324119(Top 85%)13824(Top 86%)13824(Top 245%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21story building
+97ft-345ft

Overall

20289

Males

12645

M18-39

12645

5K→10K

3.1 - 6.2 mi

Top 72%
×5story building
+79ft-138ft

Overall

20431

Males

12673

M18-39

12673

10K→15K

6.2 - 9.3 mi

Top 71%
×3story building
+67ft-78ft

Overall

20289

Males

12645

M18-39

12645

15K→20K

9.3 - 12.4 mi

Top 69%
×5story building
+106ft-86ft

Overall

19676

Males

12323

M18-39

12323

20K→Half

12.4 - 13.1 mi

Top 71%
×2story building
+19ft-37ft

Overall

20051

Males

12492

M18-39

12492

Half→25K

13.1 - 15.5 mi

Top 71%
×4story building
+66ft-88ft

Overall

20268

Males

12535

M18-39

12535

25K→30K

15.5 - 18.6 mi

Top 76%
×9story building
+181ft-148ft

Overall

21457

Males

12919

M18-39

12919

30K→20M

18.6 - 20.0 mi

Top 80%
×5story building
+64ft-50ft

Overall

22587

Males

13327

M18-39

13327

20M→21M

20.0 - 21.0 mi

Top 80%
×8story building
+106ft-24ft

Overall

22805

Males

13346

M18-39

13346

21M→35K

21.0 - 21.8 mi

Top 84%
×7story building
+17ft-86ft

Overall

23936

Males

13852

M18-39

13852

35K→23M

21.8 - 23.0 mi

Top 88%
×5story building
+23ft-63ft

Overall

25067

Males

14364

M18-39

14364

23M→24M

23.0 - 24.0 mi

Top 79%
×6story building
+12ft-82ft

Overall

22561

Males

13087

M18-39

13087

24M→40K

24.0 - 24.9 mi

Top 84%
×1story
+6ft-20ft

Overall

23835

Males

13685

M18-39

13685

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

21660

Males

12617

M18-39

12617

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2story building
+22ft-21ft

Overall

24119

Males

13824

M18-39

13824

Passing Analysis

Category:
Athletes Passed
1173
Passed By
2970
Net Change
-1797
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19920
5K → 10K162443-281#19920#20201
10K → 15K178186-8#20201#20209
15K → 20K266116+150#20209#20059
20K → Half3720+17#20059#20042
Half → 25K144191-47#20042#20089
25K → 30K135483-348#20089#20437
30K → 20M49279-230#20437#20667
20M → 21M45240-195#20667#20862
21M → 35K22220-198#20862#21060
35K → 23M23419-396#21060#21456
23M → 24M3696-60#21456#21516
24M → 40K27142-115#21516#21631
40K → 25.2M2825+3#21631#21628
25.2M → Finish21110-89#21628#21717
TOTALS11732970-1797
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing