Boston Marathon logo
BOSTON MARATHON 2025

Joseph Mckellar

Bib: 4901•M

CA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 9%
Gender (Male)
#0 / 16105
Top 15%
Masters (Masters Men)
#0 / 10463
Top 4%
Division (M40-44)
#0 / 2247
Top 13%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:23
Rank: #4276
Start → 5K
20:23 | 6:34/mi
10K· 6.21 mi
40:46
Rank: #4213 (+63)
5K → 10K
20:23 | 6:34/mi
15K· 9.32 mi
1:01:01
Rank: #4008 (+205)
10K → 15K
20:15 | 6:31/mi
20K· 12.43 mi
1:21:19
Rank: #3785 (+223)
15K → 20K
20:18 | 6:32/mi
Half· 13.11 mi
1:25:42
Rank: #3750 (+35)
20K → Half
4:23 | 6:25/mi
25K· 15.53 mi
1:41:30
Rank: #3601 (+149)
Half → 25K
15:48 | 6:31/mi
30K· 18.64 mi
2:01:54
Rank: #3261 (+340)
25K → 30K
20:24 | 6:34/mi
20M
2:10:49
Rank: #3110 (+151)
30K → 20M
8:55 | 6:34/mi
21M
2:17:45
Rank: #3002 (+108)
20M → 21M
6:56 | 6:56/mi
35K· 21.75 mi
2:22:35
Rank: #2934 (+68)
21M → 35K
4:50 | 6:28/mi
23M
2:30:52
Rank: #2827 (+107)
35K → 23M
8:17 | 6:37/mi
24M
2:37:19
Rank: #2754 (+73)
23M → 24M
6:27 | 6:27/mi
40K· 24.85 mi
2:42:54
Rank: #2675 (+79)
24M → 40K
5:35 | 6:32/mi
25.2M
2:45:20
Rank: #2649 (+26)
40K → 25.2M
2:26 | 7:03/mi
Finish· 26.22 mi
2:51:32
Rank: #2544 (+105)
25.2M → Finish
6:12 | 6:05/mi

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 Half⚖️ Balanced
Distance13.11 mi
Time1:25:42
Pace6:32 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:25:50
Pace6:33 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:1820:236:3420:23
6:34
-
10K
6.21 mi10:44:4140:466:3420:23
6:34
0:00
15K
9.32 mi11:04:561:01:016:3320:15
6:31
-0:03
20K
12.43 mi11:25:141:21:196:3320:18
6:32
+0:01
Half
13.11 mi11:29:371:25:426:324:23
6:25
-0:07
25K
15.53 mi11:45:251:41:306:3215:48
6:31
+0:06
30K
18.64 mi12:05:492:01:546:3220:24
6:34
+0:03
20M
20.00 mi12:14:442:10:496:328:55
6:34
0:00
21M
21.00 mi12:21:402:17:456:346:56
6:56
+0:22
35K
21.75 mi12:26:302:22:356:334:50
6:28
-0:28
23M
23.00 mi12:34:472:30:526:348:17
6:37
+0:09
24M
24.00 mi12:41:142:37:196:336:27
6:27
-0:10
40K
24.85 mi12:46:492:42:546:335:35
6:32
+0:05
25.2M
25.20 mi12:49:152:45:206:342:26
7:03
+0:31
Finish
26.22 mi12:55:272:51:326:336:12
6:05
-0:58

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

6:05 /mi

Average Pace

6:33 /mi

Slowest Pace

7:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:42:10

95% of race

Time at Steady Pace

9:22

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:33 /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 mi10:24:1820:236:3420:23
6:34
#4276
10K
6.21 mi10:44:4140:466:3420:23
6:34
#4213
15K
9.32 mi11:04:561:01:016:3320:15
6:31
#4008
20K
12.43 mi11:25:141:21:196:3320:18
6:32
#3785
Half
13.11 mi11:29:371:25:426:324:23
6:25
#3750
25K
15.53 mi11:45:251:41:306:3215:48
6:31
#3601
30K
18.64 mi12:05:492:01:546:3220:24
6:34
#3261
20M
20.00 mi12:14:442:10:496:328:55
6:34
#3110
21M
21.00 mi12:21:402:17:456:346:56
6:56
#3002
35K
21.75 mi12:26:302:22:356:334:50
6:28
#2934
23M
23.00 mi12:34:472:30:526:348:17
6:37
#2827
24M
24.00 mi12:41:142:37:196:336:27
6:27
#2754
40K
24.85 mi12:46:492:42:546:335:35
6:32
#2675
25.2M
25.20 mi12:49:152:45:206:342:26
7:03
#2649
Finish
26.22 mi12:55:272:51:326:336:12
6:05
#2544
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi4276402040203681(Top 13%)3476(Top 22%)3476(Top 155%)
10K6.21 mi3.10 mi4213+633964+563964+564151(Top 15%)3904(Top 24%)3904(Top 174%)
15K9.32 mi3.11 mi4008+2053779+1853779+1853681(Top 13%)3476(Top 22%)3476(Top 155%)
20K12.43 mi3.11 mi3785+2233571+2083571+2083314(Top 12%)3139(Top 19%)3139(Top 140%)
Half13.11 mi0.68 mi3750+353540+313540+313241(Top 11%)3082(Top 19%)3082(Top 137%)
25K15.53 mi2.42 mi3601+1493405+1353405+1352982(Top 10%)2836(Top 18%)2836(Top 126%)
30K18.64 mi3.11 mi3261+3403090+3153090+3152258(Top 8%)2137(Top 13%)2137(Top 95%)
20M20.00 mi1.36 mi3110+1512949+1412949+1411887(Top 7%)1787(Top 11%)1787(Top 80%)
21M21.00 mi1.00 mi3002+1082846+1032846+1032012(Top 7%)1895(Top 12%)1895(Top 84%)
35K21.75 mi0.75 mi2934+682780+662780+662301(Top 8%)2153(Top 13%)2153(Top 96%)
23M23.00 mi1.25 mi2827+1072681+992681+991911(Top 7%)1788(Top 11%)1788(Top 80%)
24M24.00 mi1.00 mi2754+732611+702611+701880(Top 7%)1749(Top 11%)1749(Top 78%)
40K24.85 mi0.85 mi2675+792535+762535+761744(Top 6%)1614(Top 10%)1614(Top 72%)
25.2M25.20 mi0.35 mi2649+262509+262509+261700(Top 6%)1557(Top 10%)1557(Top 69%)
Finish26.22 mi1.02 mi2544+1052410+992410+991155(Top 4%)1081(Top 7%)1081(Top 48%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21stories
+97ft-345ft

Overall

3681

Males

3476

M40-44

3476

5K→10K

3.1 - 6.2 mi

Top 15%
×5stories
+79ft-138ft

Overall

4151

Males

3904

M40-44

3904

10K→15K

6.2 - 9.3 mi

Top 13%
×3stories
+67ft-78ft

Overall

3681

Males

3476

M40-44

3476

15K→20K

9.3 - 12.4 mi

Top 12%
×5stories
+106ft-86ft

Overall

3314

Males

3139

M40-44

3139

20K→Half

12.4 - 13.1 mi

Top 11%
×2stories
+19ft-37ft

Overall

3241

Males

3082

M40-44

3082

Half→25K

13.1 - 15.5 mi

Top 10%
×4stories
+66ft-88ft

Overall

2982

Males

2836

M40-44

2836

25K→30K

15.5 - 18.6 mi

Top 8%
×9stories
+181ft-148ft

Overall

2258

Males

2137

M40-44

2137

30K→20M

18.6 - 20.0 mi

Top 7%
×5stories
+64ft-50ft

Overall

1887

Males

1787

M40-44

1787

20M→21M

20.0 - 21.0 mi

Top 7%
×8stories
+106ft-24ft

Overall

2012

Males

1895

M40-44

1895

21M→35K

21.0 - 21.8 mi

Top 8%
×7stories
+17ft-86ft

Overall

2301

Males

2153

M40-44

2153

35K→23M

21.8 - 23.0 mi

Top 7%
×5stories
+23ft-63ft

Overall

1911

Males

1788

M40-44

1788

23M→24M

23.0 - 24.0 mi

Top 7%
×6stories
+12ft-82ft

Overall

1880

Males

1749

M40-44

1749

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1744

Males

1614

M40-44

1614

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1700

Males

1557

M40-44

1557

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

1155

Males

1081

M40-44

1081

Passing Analysis

Category:
Athletes Passed
1934
Passed By
202
Net Change
+1732
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4276
5K → 10K173110+63#4276#4213
10K → 15K23126+205#4213#4008
15K → 20K23411+223#4008#3785
20K → Half383+35#3785#3750
Half → 25K1578+149#3750#3601
25K → 30K3466+340#3601#3261
30K → 20M1543+151#3261#3110
20M → 21M1113+108#3110#3002
21M → 35K735+68#3002#2934
35K → 23M1158+107#2934#2827
23M → 24M829+73#2827#2754
24M → 40K834+79#2754#2675
40K → 25.2M293+26#2675#2649
25.2M → Finish1083+105#2649#2544
TOTALS1934202+1732
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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