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BOSTON MARATHON 2025

Scott Mcdonald

Bib: 8164•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 32%
Gender (Male)
#0 / 16105
Top 45%
Masters (Masters Men)
#0 / 10463
Top 33%
Division (M40-44)
#0 / 2247
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:45
Rank: #5274
Start → 5K
20:45 | 6:41/mi
10K· 6.21 mi
41:38
Rank: #5368 (-94)
5K → 10K
20:53 | 6:43/mi
15K· 9.32 mi
1:03:02
Rank: #5849 (-481)
10K → 15K
21:24 | 6:53/mi
20K· 12.43 mi
1:25:29
Rank: #6670 (-821)
15K → 20K
22:27 | 7:14/mi
Half· 13.11 mi
1:30:16
Rank: #6721 (-51)
20K → Half
4:47 | 7:01/mi
25K· 15.53 mi
1:48:11
Rank: #7022 (-301)
Half → 25K
17:55 | 7:23/mi
30K· 18.64 mi
2:12:44
Rank: #7474 (-452)
25K → 30K
24:33 | 7:54/mi
20M
2:24:46
Rank: #8046 (-572)
30K → 20M
12:02 | 8:51/mi
21M
2:33:27
Rank: #8196 (-150)
20M → 21M
8:41 | 8:41/mi
35K· 21.75 mi
2:39:39
Rank: #8399 (-203)
21M → 35K
6:12 | 8:17/mi
23M
2:49:42
Rank: #8445 (-46)
35K → 23M
10:03 | 8:02/mi
24M
2:57:49
Rank: #8602 (-157)
23M → 24M
8:07 | 8:07/mi
40K· 24.85 mi
3:04:59
Rank: #8734 (-132)
24M → 40K
7:10 | 8:23/mi
25.2M
3:08:08
Rank: #8796 (-62)
40K → 25.2M
3:09 | 9:08/mi
Finish· 26.22 mi
3:16:21
Rank: #8969 (-173)
25.2M → Finish
8:13 | 8:04/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:16
Pace6:53 /mi
2nd Half
Distance13.11 mi
Time1:46:05
Pace8:06 /mi
📊Positive Split: 17.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:29:1520:456:4120:45
6:41
-
10K
6.21 mi10:50:0841:386:4220:53
6:43
+0:02
15K
9.32 mi11:11:321:03:026:4621:24
6:53
+0:10
20K
12.43 mi11:33:591:25:296:5322:27
7:14
+0:21
Half
13.11 mi11:38:461:30:166:534:47
7:01
-0:13
25K
15.53 mi11:56:411:48:116:5817:55
7:23
+0:22
30K
18.64 mi12:21:142:12:447:0724:33
7:54
+0:31
20M
20.00 mi12:33:162:24:467:1412:02
8:51
+0:57
21M
21.00 mi12:41:572:33:277:188:41
8:41
-0:10
35K
21.75 mi12:48:092:39:397:206:12
8:17
-0:24
23M
23.00 mi12:58:122:49:427:2310:03
8:02
-0:15
24M
24.00 mi13:06:192:57:497:258:07
8:07
+0:05
40K
24.85 mi13:13:293:04:597:277:10
8:23
+0:16
25.2M
25.20 mi13:16:383:08:087:283:09
9:08
+0:45
Finish
26.22 mi13:24:513:16:217:308:13
8:04
-1:04

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

6:41 /mi

Average Pace

7:30 /mi

Slowest Pace

9:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:48:11

55% of race

Time at Steady Pace

1:04:18

33% of race

Time at Slower Pace

23:52

12% of race

Average Pace: 7:29 /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 mi10:29:1520:456:4120:45
6:41
#5274
10K
6.21 mi10:50:0841:386:4220:53
6:43
#5368
15K
9.32 mi11:11:321:03:026:4621:24
6:53
#5849
20K
12.43 mi11:33:591:25:296:5322:27
7:14
#6670
Half
13.11 mi11:38:461:30:166:534:47
7:01
#6721
25K
15.53 mi11:56:411:48:116:5817:55
7:23
#7022
30K
18.64 mi12:21:142:12:447:0724:33
7:54
#7474
20M
20.00 mi12:33:162:24:467:1412:02
8:51
#8046
21M
21.00 mi12:41:572:33:277:188:41
8:41
#8196
35K
21.75 mi12:48:092:39:397:206:12
8:17
#8399
23M
23.00 mi12:58:122:49:427:2310:03
8:02
#8445
24M
24.00 mi13:06:192:57:497:258:07
8:07
#8602
40K
24.85 mi13:13:293:04:597:277:10
8:23
#8734
25.2M
25.20 mi13:16:383:08:087:283:09
9:08
#8796
Finish
26.22 mi13:24:513:16:217:308:13
8:04
#8969
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi5274490949096864(Top 24%)6152(Top 38%)6152(Top 274%)
10K6.21 mi3.10 mi5368-944976-674976-675543(Top 20%)5104(Top 32%)5104(Top 227%)
15K9.32 mi3.11 mi5849-4815371-3955371-3956864(Top 24%)6152(Top 38%)6152(Top 274%)
20K12.43 mi3.11 mi6670-8216020-6496020-6498415(Top 30%)7119(Top 44%)7119(Top 317%)
Half13.11 mi0.68 mi6721-516066-466066-467674(Top 27%)6695(Top 42%)6695(Top 298%)
25K15.53 mi2.42 mi7022-3016273-2076273-2079055(Top 32%)7371(Top 46%)7371(Top 328%)
30K18.64 mi3.11 mi7474-4526547-2746547-27410626(Top 37%)7986(Top 50%)7986(Top 355%)
20M20.00 mi1.36 mi8046-5726862-3156862-31515943(Top 56%)10336(Top 64%)10336(Top 460%)
21M21.00 mi1.00 mi8196-1506929-676929-6711538(Top 41%)8131(Top 50%)8131(Top 362%)
35K21.75 mi0.75 mi8399-2037026-977026-9714133(Top 50%)9330(Top 58%)9330(Top 415%)
23M23.00 mi1.25 mi8445-467013+137013+1310192(Top 36%)7325(Top 45%)7325(Top 326%)
24M24.00 mi1.00 mi8602-1577078-657078-6511977(Top 42%)8143(Top 51%)8143(Top 362%)
40K24.85 mi0.85 mi8734-1327110-327110-3212633(Top 44%)8339(Top 52%)8339(Top 371%)
25.2M25.20 mi0.35 mi8796-627126-167126-1612469(Top 44%)8198(Top 51%)8198(Top 365%)
Finish26.22 mi1.02 mi8969-1737192-667192-6613274(Top 47%)8640(Top 54%)8640(Top 385%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21stories
+97ft-345ft

Overall

6864

Males

6152

M40-44

6152

5K→10K

3.1 - 6.2 mi

Top 20%
×5stories
+79ft-138ft

Overall

5543

Males

5104

M40-44

5104

10K→15K

6.2 - 9.3 mi

Top 24%
×3stories
+67ft-78ft

Overall

6864

Males

6152

M40-44

6152

15K→20K

9.3 - 12.4 mi

Top 30%
×5stories
+106ft-86ft

Overall

8415

Males

7119

M40-44

7119

20K→Half

12.4 - 13.1 mi

Top 27%
×2stories
+19ft-37ft

Overall

7674

Males

6695

M40-44

6695

Half→25K

13.1 - 15.5 mi

Top 32%
×4stories
+66ft-88ft

Overall

9055

Males

7371

M40-44

7371

25K→30K

15.5 - 18.6 mi

Top 37%
×9stories
+181ft-148ft

Overall

10626

Males

7986

M40-44

7986

30K→20M

18.6 - 20.0 mi

Top 56%
×5stories
+64ft-50ft

Overall

15943

Males

10336

M40-44

10336

20M→21M

20.0 - 21.0 mi

Top 41%
×8stories
+106ft-24ft

Overall

11538

Males

8131

M40-44

8131

21M→35K

21.0 - 21.8 mi

Top 50%
×7stories
+17ft-86ft

Overall

14133

Males

9330

M40-44

9330

35K→23M

21.8 - 23.0 mi

Top 36%
×5stories
+23ft-63ft

Overall

10192

Males

7325

M40-44

7325

23M→24M

23.0 - 24.0 mi

Top 42%
×6stories
+12ft-82ft

Overall

11977

Males

8143

M40-44

8143

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

12633

Males

8339

M40-44

8339

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

12469

Males

8198

M40-44

8198

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2stories
+22ft-21ft

Overall

13274

Males

8640

M40-44

8640

Passing Analysis

Category:
Athletes Passed
680
Passed By
4375
Net Change
-3695
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5274
5K → 10K139233-94#5274#5368
10K → 15K33514-481#5368#5849
15K → 20K27848-821#5849#6670
20K → Half1465-51#6670#6721
Half → 25K53354-301#6721#7022
25K → 30K74526-452#7022#7474
30K → 20M18590-572#7474#8046
20M → 21M56206-150#8046#8196
21M → 35K19222-203#8196#8399
35K → 23M97143-46#8399#8445
23M → 24M37194-157#8445#8602
24M → 40K55187-132#8602#8734
40K → 25.2M1880-62#8734#8796
25.2M → Finish40213-173#8796#8969
TOTALS6804375-3695
📊

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