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BOSTON MARATHON 2025

Keith Mcdonald

Bib: 26633•M

MA

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

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:20/mi
25:53
↑ 97↓ 3451.5%
10K· 6.21 mi
8:13/mi
51:26
↑ 79↓ 1380.4%
15K· 9.32 mi
8:14/mi
1:17:02
↑ 67↓ 78
20K· 12.43 mi
8:23/mi
1:43:06
↑ 106↓ 860.1%
Half· 13.11 mi
8:11/mi
1:48:41
↑ 19↓ 370.5%
25K· 15.53 mi
8:39/mi
2:09:40
↑ 66↓ 880.2%
30K· 18.64 mi
9:26/mi
2:39:00
↑ 181↓ 1480.2%
20M
9:46/mi
2:52:17
↑ 64↓ 500.2%
21M
12:06/mi
3:04:23
↑ 106↓ 241.6%
35K· 21.75 mi
10:27/mi
3:12:12
↑ 17↓ 861.7%
23M
10:15/mi
3:25:02
↑ 23↓ 630.6%
24M
10:41/mi
3:35:43
↓ 821.3%
40K· 24.85 mi
10:37/mi
3:44:48
↓ 200.3%
25.2M
12:02/mi
3:48:57
↑ 13↓ 160.2%
Finish· 26.22 mi
9:10/mi
3:58:17
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:41
Pace8:17 /mi
2nd Half
Distance13.11 mi
Time2:09:36
Pace9:53 /mi
📊Positive Split: 19.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:2025:538:2025:53
8:20
-
10K
6.21 mi12:09:5351:268:1725:33
8:13
-0:07
15K
9.32 mi12:35:291:17:028:1625:36
8:14
+0:01
20K
12.43 mi13:01:331:43:068:1826:04
8:23
+0:09
Half
13.11 mi13:07:081:48:418:175:35
8:11
-0:12
25K
15.53 mi13:28:072:09:408:2120:59
8:39
+0:28
30K
18.64 mi13:57:272:39:008:3229:20
9:26
+0:47
20M
20.00 mi14:10:442:52:178:3713:17
9:46
+0:20
21M
21.00 mi14:22:503:04:238:4712:06
12:06
+2:20
35K
21.75 mi14:30:393:12:128:507:49
10:27
-1:39
23M
23.00 mi14:43:293:25:028:5512:50
10:15
-0:12
24M
24.00 mi14:54:103:35:438:5910:41
10:41
+0:26
40K
24.85 mi15:03:153:44:489:039:05
10:37
-0:04
25.2M
25.20 mi15:07:243:48:579:054:09
12:02
+1:25
Finish
26.22 mi15:16:443:58:179:069:20
9:10
-2:52

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

8:11 /mi

Average Pace

9:06 /mi

Slowest Pace

12:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:40

54% of race

Time at Steady Pace

51:57

22% of race

Time at Slower Pace

56:40

24% of race

Average Pace: 9:05 /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 mi11:44:2025:538:2025:53
8:20
#18910
10K
6.21 mi12:09:5351:268:1725:33
8:13
#18466
15K
9.32 mi12:35:291:17:028:1625:36
8:14
#18179
20K
12.43 mi13:01:331:43:068:1826:04
8:23
#17976
Half
13.11 mi13:07:081:48:418:175:35
8:11
#17917
25K
15.53 mi13:28:072:09:408:2120:59
8:39
#17910
30K
18.64 mi13:57:272:39:008:3229:20
9:26
#18316
20M
20.00 mi14:10:442:52:178:3713:17
9:46
#18515
21M
21.00 mi14:22:503:04:238:4712:06
12:06
#19074
35K
21.75 mi14:30:393:12:128:507:49
10:27
#19304
23M
23.00 mi14:43:293:25:028:5512:50
10:15
#19487
24M
24.00 mi14:54:103:35:438:5910:41
10:41
#19737
40K
24.85 mi15:03:153:44:489:039:05
10:37
#19893
25.2M
25.20 mi15:07:243:48:579:054:09
12:02
#19983
Finish
26.22 mi15:16:443:58:179:069:20
9:10
#20002
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi18910119991199917645(Top 62%)11490(Top 71%)11490(Top 511%)
10K6.21 mi3.10 mi18466+44411820+17911820+17918050(Top 64%)11676(Top 72%)11676(Top 520%)
15K9.32 mi3.11 mi18179+28711692+12811692+12817645(Top 62%)11490(Top 71%)11490(Top 511%)
20K12.43 mi3.11 mi17976+20311602+9011602+9017487(Top 62%)11395(Top 71%)11395(Top 507%)
Half13.11 mi0.68 mi17917+5911574+2811574+2817173(Top 60%)11274(Top 70%)11274(Top 502%)
25K15.53 mi2.42 mi17910+711559+1511559+1518114(Top 64%)11582(Top 72%)11582(Top 515%)
30K18.64 mi3.11 mi18316-40611700-14111700-14119705(Top 69%)12151(Top 75%)12151(Top 541%)
20M20.00 mi1.36 mi18515-19911764-6411764-6420205(Top 71%)12237(Top 76%)12237(Top 545%)
21M21.00 mi1.00 mi19074-55911977-21311977-21323755(Top 84%)13799(Top 86%)13799(Top 614%)
35K21.75 mi0.75 mi19304-23012062-8512062-8523040(Top 81%)13404(Top 83%)13404(Top 597%)
23M23.00 mi1.25 mi19487-18312096-3412096-3421264(Top 75%)12523(Top 78%)12523(Top 557%)
24M24.00 mi1.00 mi19737-25012183-8712183-8723266(Top 82%)13437(Top 83%)13437(Top 598%)
40K24.85 mi0.85 mi19893-15612236-5312236-5322240(Top 78%)12850(Top 80%)12850(Top 572%)
25.2M25.20 mi0.35 mi19983-9012273-3712273-3723275(Top 82%)13409(Top 83%)13409(Top 597%)
Finish26.22 mi1.02 mi20002-1912269+412269+419765(Top 70%)11697(Top 73%)11697(Top 521%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21story building
+97ft-345ft

Overall

17645

Males

11490

M40-44

11490

5K→10K

3.1 - 6.2 mi

Top 64%
×5story building
+79ft-138ft

Overall

18050

Males

11676

M40-44

11676

10K→15K

6.2 - 9.3 mi

Top 62%
×3story building
+67ft-78ft

Overall

17645

Males

11490

M40-44

11490

15K→20K

9.3 - 12.4 mi

Top 62%
×5story building
+106ft-86ft

Overall

17487

Males

11395

M40-44

11395

20K→Half

12.4 - 13.1 mi

Top 60%
×2story building
+19ft-37ft

Overall

17173

Males

11274

M40-44

11274

Half→25K

13.1 - 15.5 mi

Top 64%
×4story building
+66ft-88ft

Overall

18114

Males

11582

M40-44

11582

25K→30K

15.5 - 18.6 mi

Top 69%
×9story building
+181ft-148ft

Overall

19705

Males

12151

M40-44

12151

30K→20M

18.6 - 20.0 mi

Top 71%
×5story building
+64ft-50ft

Overall

20205

Males

12237

M40-44

12237

20M→21M

20.0 - 21.0 mi

Top 84%
×8story building
+106ft-24ft

Overall

23755

Males

13799

M40-44

13799

21M→35K

21.0 - 21.8 mi

Top 81%
×7story building
+17ft-86ft

Overall

23040

Males

13404

M40-44

13404

35K→23M

21.8 - 23.0 mi

Top 75%
×5story building
+23ft-63ft

Overall

21264

Males

12523

M40-44

12523

23M→24M

23.0 - 24.0 mi

Top 82%
×6story building
+12ft-82ft

Overall

23266

Males

13437

M40-44

13437

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

22240

Males

12850

M40-44

12850

40K→25.2M

24.9 - 25.2 mi

Top 82%
×1story
+13ft-16ft

Overall

23275

Males

13409

M40-44

13409

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2story building
+22ft-21ft

Overall

19765

Males

11697

M40-44

11697

Passing Analysis

Category:
Athletes Passed
1832
Passed By
2924
Net Change
-1092
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18910
5K → 10K552108+444#18910#18466
10K → 15K35568+287#18466#18179
15K → 20K29289+203#18179#17976
20K → Half689+59#17976#17917
Half → 25K167160+7#17917#17910
25K → 30K127533-406#17910#18316
30K → 20M60259-199#18316#18515
20M → 21M18577-559#18515#19074
21M → 35K16246-230#19074#19304
35K → 23M55238-183#19304#19487
23M → 24M22272-250#19487#19737
24M → 40K31187-156#19737#19893
40K → 25.2M797-90#19893#19983
25.2M → Finish6281-19#19983#20002
TOTALS18322924-1092
📊

Passing Visuals

Category:
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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