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BOSTON MARATHON 2025

Rob Mckellar

Bib: 7377•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 36%
Gender (Male)
#0 / 16105
Top 49%
Masters (Masters Men)
#0 / 10463
Top 38%
Division (M45-49)
#0 / 2386
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:06
Rank: #3623
Start → 5K
20:06 | 6:28/mi
10K· 6.21 mi
41:05
Rank: #4600 (-977)
5K → 10K
20:59 | 6:45/mi
15K· 9.32 mi
1:02:50
Rank: #5636 (-1036)
10K → 15K
21:45 | 7:00/mi
20K· 12.43 mi
1:24:54
Rank: #6245 (-609)
15K → 20K
22:04 | 7:06/mi
Half· 13.11 mi
1:29:45
Rank: #6386 (-141)
20K → Half
4:51 | 7:07/mi
25K· 15.53 mi
1:47:40
Rank: #6802 (-416)
Half → 25K
17:55 | 7:23/mi
30K· 18.64 mi
2:12:47
Rank: #7498 (-696)
25K → 30K
25:07 | 8:05/mi
20M
2:24:33
Rank: #7957 (-459)
30K → 20M
11:46 | 8:40/mi
21M
2:34:20
Rank: #8548 (-591)
20M → 21M
9:47 | 9:47/mi
35K· 21.75 mi
2:40:35
Rank: #8776 (-228)
21M → 35K
6:15 | 8:21/mi
23M
2:51:39
Rank: #9172 (-396)
35K → 23M
11:04 | 8:50/mi
24M
3:00:13
Rank: #9446 (-274)
23M → 24M
8:34 | 8:34/mi
40K· 24.85 mi
3:07:52
Rank: #9736 (-290)
24M → 40K
7:39 | 8:57/mi
25.2M
3:11:20
Rank: #9877 (-141)
40K → 25.2M
3:28 | 10:03/mi
Finish· 26.22 mi
3:20:32
Rank: #10298 (-421)
25.2M → Finish
9:12 | 9:02/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:45
Pace6:51 /mi
2nd Half
Distance13.11 mi
Time1:50:47
Pace8:27 /mi
📊Positive Split: 23.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:4620:066:2820:06
6:28
-
10K
6.21 mi10:48:4541:056:3720:59
6:45
+0:17
15K
9.32 mi11:10:301:02:506:4421:45
7:00
+0:15
20K
12.43 mi11:32:341:24:546:5022:04
7:06
+0:06
Half
13.11 mi11:37:251:29:456:514:51
7:07
+0:01
25K
15.53 mi11:55:201:47:406:5617:55
7:23
+0:16
30K
18.64 mi12:20:272:12:477:0725:07
8:05
+0:42
20M
20.00 mi12:32:132:24:337:1411:46
8:40
+0:35
21M
21.00 mi12:42:002:34:207:219:47
9:47
+1:07
35K
21.75 mi12:48:152:40:357:236:15
8:21
-1:26
23M
23.00 mi12:59:192:51:397:2811:04
8:50
+0:29
24M
24.00 mi13:07:533:00:137:318:34
8:34
-0:16
40K
24.85 mi13:15:323:07:527:347:39
8:57
+0:23
25.2M
25.20 mi13:19:003:11:207:363:28
10:03
+1:06
Finish
26.22 mi13:28:123:20:327:399:12
9:02
-1:01

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

6:28 /mi

Average Pace

7:39 /mi

Slowest Pace

10:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:47:40

54% of race

Time at Steady Pace

1:02:46

31% of race

Time at Slower Pace

30:06

15% of race

Average Pace: 7:39 /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 mi10:27:4620:066:2820:06
6:28
#3623
10K
6.21 mi10:48:4541:056:3720:59
6:45
#4600
15K
9.32 mi11:10:301:02:506:4421:45
7:00
#5636
20K
12.43 mi11:32:341:24:546:5022:04
7:06
#6245
Half
13.11 mi11:37:251:29:456:514:51
7:07
#6386
25K
15.53 mi11:55:201:47:406:5617:55
7:23
#6802
30K
18.64 mi12:20:272:12:477:0725:07
8:05
#7498
20M
20.00 mi12:32:132:24:337:1411:46
8:40
#7957
21M
21.00 mi12:42:002:34:207:219:47
9:47
#8548
35K
21.75 mi12:48:152:40:357:236:15
8:21
#8776
23M
23.00 mi12:59:192:51:397:2811:04
8:50
#9172
24M
24.00 mi13:07:533:00:137:318:34
8:34
#9446
40K
24.85 mi13:15:323:07:527:347:39
8:57
#9736
25.2M
25.20 mi13:19:003:11:207:363:28
10:03
#9877
Finish
26.22 mi13:28:123:20:327:399:12
9:02
#10298
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi3623343834387641(Top 27%)6712(Top 42%)6712(Top 281%)
10K6.21 mi3.10 mi4600-9774316-8784316-8785901(Top 21%)5402(Top 34%)5402(Top 226%)
15K9.32 mi3.11 mi5636-10365196-8805196-8807641(Top 27%)6712(Top 42%)6712(Top 281%)
20K12.43 mi3.11 mi6245-6095678-4825678-4827529(Top 27%)6573(Top 41%)6573(Top 275%)
Half13.11 mi0.68 mi6386-1415787-1095787-1098356(Top 29%)7125(Top 44%)7125(Top 299%)
25K15.53 mi2.42 mi6802-4166100-3136100-3139067(Top 32%)7383(Top 46%)7383(Top 309%)
30K18.64 mi3.11 mi7498-6966563-4636563-46311972(Top 42%)8659(Top 54%)8659(Top 363%)
20M20.00 mi1.36 mi7957-4596805-2426805-24214753(Top 52%)9790(Top 61%)9790(Top 410%)
21M21.00 mi1.00 mi8548-5917141-3367141-33617370(Top 61%)10854(Top 67%)10854(Top 455%)
35K21.75 mi0.75 mi8776-2287253-1127253-11214563(Top 51%)9517(Top 59%)9517(Top 399%)
23M23.00 mi1.25 mi9172-3967435-1827435-18215296(Top 54%)9758(Top 61%)9758(Top 409%)
24M24.00 mi1.00 mi9446-2747551-1167551-11614892(Top 52%)9519(Top 59%)9519(Top 399%)
40K24.85 mi0.85 mi9736-2907666-1157666-11515963(Top 56%)9889(Top 61%)9889(Top 414%)
25.2M25.20 mi0.35 mi9877-1417718-527718-5217187(Top 61%)10428(Top 65%)10428(Top 437%)
Finish26.22 mi1.02 mi10298-4217900-1827900-18219167(Top 67%)11406(Top 71%)11406(Top 478%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 27%
×21stories
+97ft-345ft

Overall

7641

Males

6712

M45-49

6712

5K→10K

3.1 - 6.2 mi

Top 21%
×5stories
+79ft-138ft

Overall

5901

Males

5402

M45-49

5402

10K→15K

6.2 - 9.3 mi

Top 27%
×3stories
+67ft-78ft

Overall

7641

Males

6712

M45-49

6712

15K→20K

9.3 - 12.4 mi

Top 27%
×5stories
+106ft-86ft

Overall

7529

Males

6573

M45-49

6573

20K→Half

12.4 - 13.1 mi

Top 29%
×2stories
+19ft-37ft

Overall

8356

Males

7125

M45-49

7125

Half→25K

13.1 - 15.5 mi

Top 32%
×4stories
+66ft-88ft

Overall

9067

Males

7383

M45-49

7383

25K→30K

15.5 - 18.6 mi

Top 42%
×9stories
+181ft-148ft

Overall

11972

Males

8659

M45-49

8659

30K→20M

18.6 - 20.0 mi

Top 52%
×5stories
+64ft-50ft

Overall

14753

Males

9790

M45-49

9790

20M→21M

20.0 - 21.0 mi

Top 61%
×8stories
+106ft-24ft

Overall

17370

Males

10854

M45-49

10854

21M→35K

21.0 - 21.8 mi

Top 51%
×7stories
+17ft-86ft

Overall

14563

Males

9517

M45-49

9517

35K→23M

21.8 - 23.0 mi

Top 54%
×5stories
+23ft-63ft

Overall

15296

Males

9758

M45-49

9758

23M→24M

23.0 - 24.0 mi

Top 52%
×6stories
+12ft-82ft

Overall

14892

Males

9519

M45-49

9519

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

15963

Males

9889

M45-49

9889

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

17187

Males

10428

M45-49

10428

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2stories
+22ft-21ft

Overall

19167

Males

11406

M45-49

11406

Passing Analysis

Category:
Athletes Passed
319
Passed By
6992
Net Change
-6675
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3623
5K → 10K5982-977#3623#4600
10K → 15K121048-1036#4600#5636
15K → 20K37646-609#5636#6245
20K → Half3144-141#6245#6386
Half → 25K47463-416#6386#6802
25K → 30K49745-696#6802#7498
30K → 20M20479-459#7498#7957
20M → 21M17608-591#7957#8548
21M → 35K17245-228#8548#8776
35K → 23M40436-396#8776#9172
23M → 24M30304-274#9172#9446
24M → 40K17307-290#9446#9736
40K → 25.2M10151-141#9736#9877
25.2M → Finish15434-421#9877#10298
TOTALS3196992-6675
📊

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