Boston Marathon logo
BOSTON MARATHON 2025

Eric Kok

Bib: 11377•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 20%
Gender (Male)
#0 / 16105
Top 32%
Masters (Masters Men)
#0 / 10463
Top 18%
Division (M55-59)
#0 / 1648
Top 5%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:41
Rank: #7643
Start → 5K
6:59/mi
21:41 split
10K· 6.21 mi
43:09
Rank: #7459 (+184)
5K → 10K
6:55/mi
21:28 split
15K· 9.32 mi
1:04:42
Rank: #7380 (+79)
10K → 15K
6:56/mi
21:33 split
20K· 12.43 mi
1:26:25
Rank: #7193 (+187)
15K → 20K
6:59/mi
21:43 split
Half· 13.11 mi
1:31:10
Rank: #7195 (-2)
20K → Half
6:58/mi
4:45 split
25K· 15.53 mi
1:48:02
Rank: #6961 (+234)
Half → 25K
6:57/mi
16:52 split
30K· 18.64 mi
2:10:16
Rank: #6579 (+382)
25K → 30K
7:09/mi
22:14 split
20M
2:20:04
Rank: #6407 (+172)
30K → 20M
7:13/mi
9:48 split
21M
2:27:42
Rank: #6287 (+120)
20M → 21M
7:38/mi
7:38 split
35K· 21.75 mi
2:32:55
Rank: #6215 (+72)
21M → 35K
6:58/mi
5:13 split
23M
2:41:53
Rank: #6027 (+188)
35K → 23M
7:10/mi
8:58 split
24M
2:48:52
Rank: #5928 (+99)
23M → 24M
6:59/mi
6:59 split
40K· 24.85 mi
2:55:01
Rank: #5828 (+100)
24M → 40K
7:12/mi
6:09 split
25.2M
2:57:49
Rank: #5815 (+13)
40K → 25.2M
8:07/mi
2:48 split
Finish· 26.22 mi
3:05:08
Rank: #5776 (+39)
25.2M → Finish
7:11/mi
7:19 split

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
Time1:31:10
Pace6:57 /mi
2nd Half
Distance13.11 mi
Time1:33:58
Pace7:10 /mi
📊Positive Split: 3.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:1721:416:5921:41
6:59
-
10K
6.21 mi11:09:4543:096:5721:28
6:55
-0:04
15K
9.32 mi11:31:181:04:426:5621:33
6:56
+0:01
20K
12.43 mi11:53:011:26:256:5721:43
6:59
+0:03
Half
13.11 mi11:57:461:31:106:574:45
6:58
-0:01
25K
15.53 mi12:14:381:48:026:5716:52
6:57
-0:01
30K
18.64 mi12:36:522:10:166:5922:14
7:09
+0:12
20M
20.00 mi12:46:402:20:047:009:48
7:13
+0:04
21M
21.00 mi12:54:182:27:427:027:38
7:38
+0:25
35K
21.75 mi12:59:312:32:557:025:13
6:58
-0:40
23M
23.00 mi13:08:292:41:537:028:58
7:10
+0:12
24M
24.00 mi13:15:282:48:527:026:59
6:59
-0:11
40K
24.85 mi13:21:372:55:017:026:09
7:12
+0:13
25.2M
25.20 mi13:24:252:57:497:032:48
8:07
+0:55
Finish
26.22 mi13:31:443:05:087:047:19
7:11
-0:56

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

6:55 /mi

Average Pace

7:04 /mi

Slowest Pace

8:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:54:42

94% of race

Time at Steady Pace

10:26

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:04 /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 mi10:48:1721:416:5921:41
6:59
#7643
10K
6.21 mi11:09:4543:096:5721:28
6:55
#7459
15K
9.32 mi11:31:181:04:426:5621:33
6:56
#7380
20K
12.43 mi11:53:011:26:256:5721:43
6:59
#7193
Half
13.11 mi11:57:461:31:106:574:45
6:58
#7195
25K
15.53 mi12:14:381:48:026:5716:52
6:57
#6961
30K
18.64 mi12:36:522:10:166:5922:14
7:09
#6579
20M
20.00 mi12:46:402:20:047:009:48
7:13
#6407
21M
21.00 mi12:54:182:27:427:027:38
7:38
#6287
35K
21.75 mi12:59:312:32:557:025:13
6:58
#6215
23M
23.00 mi13:08:292:41:537:028:58
7:10
#6027
24M
24.00 mi13:15:282:48:527:026:59
6:59
#5928
40K
24.85 mi13:21:372:55:017:026:09
7:12
#5828
25.2M
25.20 mi13:24:252:57:497:032:48
8:07
#5815
Finish
26.22 mi13:31:443:05:087:047:19
7:11
#5776
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi7643675367537186(Top 25%)6385(Top 40%)6385(Top 387%)
10K6.21 mi3.10 mi7459+1846623+1306623+1307283(Top 26%)6492(Top 40%)6492(Top 394%)
15K9.32 mi3.11 mi7380+796560+636560+637186(Top 25%)6385(Top 40%)6385(Top 387%)
20K12.43 mi3.11 mi7193+1876415+1456415+1456803(Top 24%)6056(Top 38%)6056(Top 367%)
Half13.11 mi0.68 mi7195-26414+16414+17222(Top 25%)6364(Top 40%)6364(Top 386%)
25K15.53 mi2.42 mi6961+2346227+1876227+1876014(Top 21%)5405(Top 34%)5405(Top 328%)
30K18.64 mi3.11 mi6579+3825894+3335894+3335641(Top 20%)5044(Top 31%)5044(Top 306%)
20M20.00 mi1.36 mi6407+1725746+1485746+1485245(Top 18%)4662(Top 29%)4662(Top 283%)
21M21.00 mi1.00 mi6287+1205632+1145632+1145271(Top 19%)4570(Top 28%)4570(Top 277%)
35K21.75 mi0.75 mi6215+725566+665566+665152(Top 18%)4484(Top 28%)4484(Top 272%)
23M23.00 mi1.25 mi6027+1885407+1595407+1594648(Top 16%)4063(Top 25%)4063(Top 247%)
24M24.00 mi1.00 mi5928+995307+1005307+1004526(Top 16%)3919(Top 24%)3919(Top 238%)
40K24.85 mi0.85 mi5828+1005215+925215+924984(Top 18%)4194(Top 26%)4194(Top 254%)
25.2M25.20 mi0.35 mi5815+135199+165199+166508(Top 23%)5037(Top 31%)5037(Top 306%)
Finish26.22 mi1.02 mi5776+395149+505149+506885(Top 24%)5251(Top 33%)5251(Top 319%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 25%
×21story building
+97ft-345ft

Overall

7186

Males

6385

M55-59

6385

5K→10K

3.1 - 6.2 mi

Top 26%
×5story building
+79ft-138ft

Overall

7283

Males

6492

M55-59

6492

10K→15K

6.2 - 9.3 mi

Top 25%
×3story building
+67ft-78ft

Overall

7186

Males

6385

M55-59

6385

15K→20K

9.3 - 12.4 mi

Top 24%
×5story building
+106ft-86ft

Overall

6803

Males

6056

M55-59

6056

20K→Half

12.4 - 13.1 mi

Top 25%
×2story building
+19ft-37ft

Overall

7222

Males

6364

M55-59

6364

Half→25K

13.1 - 15.5 mi

Top 21%
×4story building
+66ft-88ft

Overall

6014

Males

5405

M55-59

5405

25K→30K

15.5 - 18.6 mi

Top 20%
×9story building
+181ft-148ft

Overall

5641

Males

5044

M55-59

5044

30K→20M

18.6 - 20.0 mi

Top 18%
×5story building
+64ft-50ft

Overall

5245

Males

4662

M55-59

4662

20M→21M

20.0 - 21.0 mi

Top 19%
×8story building
+106ft-24ft

Overall

5271

Males

4570

M55-59

4570

21M→35K

21.0 - 21.8 mi

Top 18%
×7story building
+17ft-86ft

Overall

5152

Males

4484

M55-59

4484

35K→23M

21.8 - 23.0 mi

Top 16%
×5story building
+23ft-63ft

Overall

4648

Males

4063

M55-59

4063

23M→24M

23.0 - 24.0 mi

Top 16%
×6story building
+12ft-82ft

Overall

4526

Males

3919

M55-59

3919

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

4984

Males

4194

M55-59

4194

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6508

Males

5037

M55-59

5037

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2story building
+22ft-21ft

Overall

6885

Males

5251

M55-59

5251

Passing Analysis

Category:
Athletes Passed
2299
Passed By
432
Net Change
+1867
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7643
5K → 10K297113+184#7643#7459
10K → 15K17798+79#7459#7380
15K → 20K23043+187#7380#7193
20K → Half1618-2#7193#7195
Half → 25K24713+234#7195#6961
25K → 30K41230+382#6961#6579
30K → 20M18210+172#6579#6407
20M → 21M13313+120#6407#6287
21M → 35K797+72#6287#6215
35K → 23M1902+188#6215#6027
23M → 24M11718+99#6027#5928
24M → 40K11313+100#5928#5828
40K → 25.2M3421+13#5828#5815
25.2M → Finish7233+39#5815#5776
TOTALS2299432+1867
📊

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing