Boston Marathon logo
BOSTON MARATHON 2025

David Mckay

Bib: 5513•M

CT

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Top 11%
Gender (Male)
#0 / 16105
Top 19%
Masters (Masters Men)
#0 / 10463
Top 7%
Division (M40-44)
#0 / 2247
Top 19%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:14
Rank: #6578
Start → 5K
21:14 | 6:50/mi
10K· 6.21 mi
42:28
Rank: #6605 (-27)
5K → 10K
21:14 | 6:50/mi
15K· 9.32 mi
1:03:16
Rank: #6063 (+542)
10K → 15K
20:48 | 6:42/mi
20K· 12.43 mi
1:24:08
Rank: #5668 (+395)
15K → 20K
20:52 | 6:43/mi
Half· 13.11 mi
1:28:40
Rank: #5606 (+62)
20K → Half
4:32 | 6:39/mi
25K· 15.53 mi
1:44:43
Rank: #5167 (+439)
Half → 25K
16:03 | 6:37/mi
30K· 18.64 mi
2:05:16
Rank: #4480 (+687)
25K → 30K
20:33 | 6:37/mi
20M
2:14:15
Rank: #4196 (+284)
30K → 20M
8:59 | 6:37/mi
21M
2:21:08
Rank: #3998 (+198)
20M → 21M
6:53 | 6:53/mi
35K· 21.75 mi
2:25:58
Rank: #3896 (+102)
21M → 35K
4:50 | 6:28/mi
23M
2:34:12
Rank: #3705 (+191)
35K → 23M
8:14 | 6:35/mi
24M
2:40:35
Rank: #3538 (+167)
23M → 24M
6:23 | 6:23/mi
40K· 24.85 mi
2:46:07
Rank: #3407 (+131)
24M → 40K
5:32 | 6:28/mi
25.2M
2:48:31
Rank: #3350 (+57)
40K → 25.2M
2:24 | 6:58/mi
Finish· 26.22 mi
2:54:47
Rank: #3196 (+154)
25.2M → Finish
6:16 | 6:09/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
Distance13.11 mi
Time1:28:40
Pace6:46 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:26:07
Pace6:34 /mi
📊Negative Split: 2.9% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:2821:146:5021:14
6:50
-
10K
6.21 mi10:46:4242:286:5021:14
6:50
0:00
15K
9.32 mi11:07:301:03:166:4720:48
6:42
-0:08
20K
12.43 mi11:28:221:24:086:4620:52
6:43
+0:01
Half
13.11 mi11:32:541:28:406:464:32
6:39
-0:04
25K
15.53 mi11:48:571:44:436:4416:03
6:37
-0:02
30K
18.64 mi12:09:302:05:166:4320:33
6:37
0:00
20M
20.00 mi12:18:292:14:156:438:59
6:37
0:00
21M
21.00 mi12:25:222:21:086:436:53
6:53
+0:16
35K
21.75 mi12:30:122:25:586:434:50
6:28
-0:25
23M
23.00 mi12:38:262:34:126:428:14
6:35
+0:07
24M
24.00 mi12:44:492:40:356:416:23
6:23
-0:12
40K
24.85 mi12:50:212:46:076:415:32
6:28
+0:05
25.2M
25.20 mi12:52:452:48:316:412:24
6:58
+0:30
Finish
26.22 mi12:59:012:54:476:406:16
6:09
-0:49

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

6:09 /mi

Average Pace

6:40 /mi

Slowest Pace

6:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03:02

70% of race

Time at Steady Pace

51:45

30% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:40 /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 mi10:25:2821:146:5021:14
6:50
#6578
10K
6.21 mi10:46:4242:286:5021:14
6:50
#6605
15K
9.32 mi11:07:301:03:166:4720:48
6:42
#6063
20K
12.43 mi11:28:221:24:086:4620:52
6:43
#5668
Half
13.11 mi11:32:541:28:406:464:32
6:39
#5606
25K
15.53 mi11:48:571:44:436:4416:03
6:37
#5167
30K
18.64 mi12:09:302:05:166:4320:33
6:37
#4480
20M
20.00 mi12:18:292:14:156:438:59
6:37
#4196
21M
21.00 mi12:25:222:21:086:436:53
6:53
#3998
35K
21.75 mi12:30:122:25:586:434:50
6:28
#3896
23M
23.00 mi12:38:262:34:126:428:14
6:35
#3705
24M
24.00 mi12:44:492:40:356:416:23
6:23
#3538
40K
24.85 mi12:50:212:46:076:415:32
6:28
#3407
25.2M
25.20 mi12:52:452:48:316:412:24
6:58
#3350
Finish
26.22 mi12:59:012:54:476:406:16
6:09
#3196
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi6578597859785004(Top 18%)4649(Top 29%)4649(Top 207%)
10K6.21 mi3.10 mi6605-275991-135991-136715(Top 24%)6053(Top 38%)6053(Top 269%)
15K9.32 mi3.11 mi6063+5425551+4405551+4405004(Top 18%)4649(Top 29%)4649(Top 207%)
20K12.43 mi3.11 mi5668+3955205+3465205+3464559(Top 16%)4237(Top 26%)4237(Top 189%)
Half13.11 mi0.68 mi5606+625151+545151+544708(Top 17%)4368(Top 27%)4368(Top 194%)
25K15.53 mi2.42 mi5167+4394786+3654786+3653578(Top 13%)3370(Top 21%)3370(Top 150%)
30K18.64 mi3.11 mi4480+6874183+6034183+6032472(Top 9%)2340(Top 15%)2340(Top 104%)
20M20.00 mi1.36 mi4196+2843927+2563927+2562067(Top 7%)1956(Top 12%)1956(Top 87%)
21M21.00 mi1.00 mi3998+1983743+1843743+1841831(Top 6%)1726(Top 11%)1726(Top 77%)
35K21.75 mi0.75 mi3896+1023649+943649+942270(Top 8%)2122(Top 13%)2122(Top 94%)
23M23.00 mi1.25 mi3705+1913476+1733476+1731736(Top 6%)1624(Top 10%)1624(Top 72%)
24M24.00 mi1.00 mi3538+1673319+1573319+1571605(Top 6%)1498(Top 9%)1498(Top 67%)
40K24.85 mi0.85 mi3407+1313199+1203199+1201519(Top 5%)1406(Top 9%)1406(Top 63%)
25.2M25.20 mi0.35 mi3350+573143+563143+561375(Top 5%)1262(Top 8%)1262(Top 56%)
Finish26.22 mi1.02 mi3196+1543004+1393004+1391365(Top 5%)1272(Top 8%)1272(Top 57%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21stories
+97ft-345ft

Overall

5004

Males

4649

M40-44

4649

5K→10K

3.1 - 6.2 mi

Top 24%
×5stories
+79ft-138ft

Overall

6715

Males

6053

M40-44

6053

10K→15K

6.2 - 9.3 mi

Top 18%
×3stories
+67ft-78ft

Overall

5004

Males

4649

M40-44

4649

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4559

Males

4237

M40-44

4237

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4708

Males

4368

M40-44

4368

Half→25K

13.1 - 15.5 mi

Top 13%
×4stories
+66ft-88ft

Overall

3578

Males

3370

M40-44

3370

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2472

Males

2340

M40-44

2340

30K→20M

18.6 - 20.0 mi

Top 7%
×5stories
+64ft-50ft

Overall

2067

Males

1956

M40-44

1956

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1831

Males

1726

M40-44

1726

21M→35K

21.0 - 21.8 mi

Top 8%
×7stories
+17ft-86ft

Overall

2270

Males

2122

M40-44

2122

35K→23M

21.8 - 23.0 mi

Top 6%
×5stories
+23ft-63ft

Overall

1736

Males

1624

M40-44

1624

23M→24M

23.0 - 24.0 mi

Top 6%
×6stories
+12ft-82ft

Overall

1605

Males

1498

M40-44

1498

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1519

Males

1406

M40-44

1406

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1375

Males

1262

M40-44

1262

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2stories
+22ft-21ft

Overall

1365

Males

1272

M40-44

1272

Passing Analysis

Category:
Athletes Passed
3621
Passed By
239
Net Change
+3382
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6578
5K → 10K177204-27#6578#6605
10K → 15K5508+542#6605#6063
15K → 20K4038+395#6063#5668
20K → Half675+62#5668#5606
Half → 25K4390+439#5606#5167
25K → 30K6881+687#5167#4480
30K → 20M2840+284#4480#4196
20M → 21M1980+198#4196#3998
21M → 35K1031+102#3998#3896
35K → 23M1921+191#3896#3705
23M → 24M1692+167#3705#3538
24M → 40K1343+131#3538#3407
40K → 25.2M603+57#3407#3350
25.2M → Finish1573+154#3350#3196
TOTALS3621239+3382
📊

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