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BOSTON MARATHON 2025

Kevin Macdonald

Bib: 27546•M

NB

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M45-49)
#0 / 2386
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
8:15/mi
25:37
↑ 97↓ 3451.5%
10K· 6.21 mi
8:07/mi
50:51
↑ 79↓ 1380.4%
15K· 9.32 mi
8:19/mi
1:16:40
↑ 67↓ 78
20K· 12.43 mi
8:44/mi
1:43:48
↑ 106↓ 860.1%
Half· 13.11 mi
8:32/mi
1:49:37
↑ 19↓ 370.5%
25K· 15.53 mi
9:25/mi
2:12:27
↑ 66↓ 880.2%
30K· 18.64 mi
9:48/mi
2:42:55
↑ 181↓ 1480.2%
20M
11:28/mi
2:58:30
↑ 64↓ 500.2%
21M
11:23/mi
3:09:53
↑ 106↓ 241.6%
35K· 21.75 mi
10:48/mi
3:17:58
↑ 17↓ 861.7%
23M
9:53/mi
3:30:20
↑ 23↓ 630.6%
24M
10:21/mi
3:40:41
↓ 821.3%
40K· 24.85 mi
9:46/mi
3:49:02
↓ 200.3%
25.2M
10:32/mi
3:52:40
↑ 13↓ 160.2%
Finish· 26.22 mi
9:20/mi
4:02:11
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:49:37
Pace8:22 /mi
2nd Half
Distance13.11 mi
Time2:12:34
Pace10:07 /mi
📊Positive Split: 20.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:41:3725:378:1525:37
8:15
-
10K
6.21 mi12:06:5150:518:1125:14
8:07
-0:08
15K
9.32 mi12:32:401:16:408:1425:49
8:19
+0:12
20K
12.43 mi12:59:481:43:488:2127:08
8:44
+0:25
Half
13.11 mi13:05:371:49:378:225:49
8:32
-0:12
25K
15.53 mi13:28:272:12:278:3222:50
9:25
+0:53
30K
18.64 mi13:58:552:42:558:4430:28
9:48
+0:23
20M
20.00 mi14:14:302:58:308:5515:35
11:28
+1:40
21M
21.00 mi14:25:533:09:539:0311:23
11:23
-0:05
35K
21.75 mi14:33:583:17:589:068:05
10:48
-0:35
23M
23.00 mi14:46:203:30:209:0912:22
9:53
-0:55
24M
24.00 mi14:56:413:40:419:1210:21
10:21
+0:28
40K
24.85 mi15:05:023:49:029:138:21
9:46
-0:35
25.2M
25.20 mi15:08:403:52:409:143:38
10:32
+0:46
Finish
26.22 mi15:18:114:02:119:159:31
9:20
-1:12

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

8:07 /mi

Average Pace

9:15 /mi

Slowest Pace

11:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:49:37

45% of race

Time at Steady Pace

1:23:32

34% of race

Time at Slower Pace

49:02

20% of race

Average Pace: 9:14 /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 mi11:41:3725:378:1525:37
8:15
#18387
10K
6.21 mi12:06:5150:518:1125:14
8:07
#17857
15K
9.32 mi12:32:401:16:408:1425:49
8:19
#17925
20K
12.43 mi12:59:481:43:488:2127:08
8:44
#18326
Half
13.11 mi13:05:371:49:378:225:49
8:32
#18380
25K
15.53 mi13:28:272:12:278:3222:50
9:25
#19064
30K
18.64 mi13:58:552:42:558:4430:28
9:48
#19538
20M
20.00 mi14:14:302:58:308:5515:35
11:28
#20192
21M
21.00 mi14:25:533:09:539:0311:23
11:23
#20401
35K
21.75 mi14:33:583:17:589:068:05
10:48
#20583
23M
23.00 mi14:46:203:30:209:0912:22
9:53
#20567
24M
24.00 mi14:56:413:40:419:1210:21
10:21
#20702
40K
24.85 mi15:05:023:49:029:138:21
9:46
#20676
25.2M
25.20 mi15:08:403:52:409:143:38
10:32
#20659
Finish
26.22 mi15:18:114:02:119:159:31
9:20
#20656
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi18387117611176118123(Top 64%)11680(Top 73%)11680(Top 490%)
10K6.21 mi3.10 mi17857+53011561+20011561+20017359(Top 61%)11398(Top 71%)11398(Top 478%)
15K9.32 mi3.11 mi17925-6811593-3211593-3218123(Top 64%)11680(Top 73%)11680(Top 490%)
20K12.43 mi3.11 mi18326-40111747-15411747-15419581(Top 69%)12275(Top 76%)12275(Top 514%)
Half13.11 mi0.68 mi18380-5411773-2611773-2619350(Top 68%)12204(Top 76%)12204(Top 511%)
25K15.53 mi2.42 mi19064-68412056-28312056-28321602(Top 76%)13121(Top 81%)13121(Top 550%)
30K18.64 mi3.11 mi19538-47412222-16612222-16621010(Top 74%)12721(Top 79%)12721(Top 533%)
20M20.00 mi1.36 mi20192-65412470-24812470-24824478(Top 86%)14200(Top 88%)14200(Top 595%)
21M21.00 mi1.00 mi20401-20912550-8012550-8022339(Top 79%)13121(Top 81%)13121(Top 550%)
35K21.75 mi0.75 mi20583-18212618-6812618-6823806(Top 84%)13791(Top 86%)13791(Top 578%)
23M23.00 mi1.25 mi20567+1612587+3112587+3120059(Top 71%)11927(Top 74%)11927(Top 500%)
24M24.00 mi1.00 mi20702-13512631-4412631-4422383(Top 79%)12993(Top 81%)12993(Top 545%)
40K24.85 mi0.85 mi20676+2612607+2412607+2419694(Top 69%)11659(Top 72%)11659(Top 489%)
25.2M25.20 mi0.35 mi20659+1712588+1912588+1919115(Top 67%)11373(Top 71%)11373(Top 477%)
Finish26.22 mi1.02 mi20656+312570+1812570+1820529(Top 72%)12070(Top 75%)12070(Top 506%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21story building
+97ft-345ft

Overall

18123

Males

11680

M45-49

11680

5K→10K

3.1 - 6.2 mi

Top 61%
×5story building
+79ft-138ft

Overall

17359

Males

11398

M45-49

11398

10K→15K

6.2 - 9.3 mi

Top 64%
×3story building
+67ft-78ft

Overall

18123

Males

11680

M45-49

11680

15K→20K

9.3 - 12.4 mi

Top 69%
×5story building
+106ft-86ft

Overall

19581

Males

12275

M45-49

12275

20K→Half

12.4 - 13.1 mi

Top 68%
×2story building
+19ft-37ft

Overall

19350

Males

12204

M45-49

12204

Half→25K

13.1 - 15.5 mi

Top 76%
×4story building
+66ft-88ft

Overall

21602

Males

13121

M45-49

13121

25K→30K

15.5 - 18.6 mi

Top 74%
×9story building
+181ft-148ft

Overall

21010

Males

12721

M45-49

12721

30K→20M

18.6 - 20.0 mi

Top 86%
×5story building
+64ft-50ft

Overall

24478

Males

14200

M45-49

14200

20M→21M

20.0 - 21.0 mi

Top 79%
×8story building
+106ft-24ft

Overall

22339

Males

13121

M45-49

13121

21M→35K

21.0 - 21.8 mi

Top 84%
×7story building
+17ft-86ft

Overall

23806

Males

13791

M45-49

13791

35K→23M

21.8 - 23.0 mi

Top 71%
×5story building
+23ft-63ft

Overall

20059

Males

11927

M45-49

11927

23M→24M

23.0 - 24.0 mi

Top 79%
×6story building
+12ft-82ft

Overall

22383

Males

12993

M45-49

12993

24M→40K

24.0 - 24.9 mi

Top 69%
×1story
+6ft-20ft

Overall

19694

Males

11659

M45-49

11659

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

19115

Males

11373

M45-49

11373

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2story building
+22ft-21ft

Overall

20529

Males

12070

M45-49

12070

Passing Analysis

Category:
Athletes Passed
1392
Passed By
3661
Net Change
-2269
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18387
5K → 10K62696+530#18387#17857
10K → 15K165233-68#17857#17925
15K → 20K90491-401#17925#18326
20K → Half2175-54#18326#18380
Half → 25K48732-684#18380#19064
25K → 30K101575-474#19064#19538
30K → 20M19673-654#19538#20192
20M → 21M35244-209#20192#20401
21M → 35K21203-182#20401#20583
35K → 23M9377+16#20583#20567
23M → 24M25160-135#20567#20702
24M → 40K7145+26#20702#20676
40K → 25.2M2912+17#20676#20659
25.2M → Finish4845+3#20659#20656
TOTALS13923661-2269
📊

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