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BOSTON MARATHON 2025

Robert Macdonald

Bib: 16106•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 42%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 44%
Division (M55-59)
#0 / 1648
Top 29%
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
7:18/mi
22:40
↑ 97↓ 3451.5%
10K· 6.21 mi
7:25/mi
45:42
↑ 79↓ 1380.4%
15K· 9.32 mi
7:28/mi
1:08:53
↑ 67↓ 78
20K· 12.43 mi
7:35/mi
1:32:26
↑ 106↓ 860.1%
Half· 13.11 mi
7:17/mi
1:37:24
↑ 19↓ 370.5%
25K· 15.53 mi
7:37/mi
1:55:52
↑ 66↓ 880.2%
30K· 18.64 mi
7:59/mi
2:20:41
↑ 181↓ 1480.2%
20M
8:23/mi
2:32:05
↑ 64↓ 500.2%
21M
8:51/mi
2:40:56
↑ 106↓ 241.6%
35K· 21.75 mi
8:08/mi
2:47:01
↑ 17↓ 861.7%
23M
8:34/mi
2:57:44
↑ 23↓ 630.6%
24M
8:33/mi
3:06:17
↓ 821.3%
40K· 24.85 mi
8:39/mi
3:13:41
↓ 200.3%
25.2M
9:46/mi
3:17:03
↑ 13↓ 160.2%
Finish· 26.22 mi
8:22/mi
3:25:35
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:24
Pace7:26 /mi
2nd Half
Distance13.11 mi
Time1:48:11
Pace8:15 /mi
📊Positive Split: 11.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:56:1722:407:1822:40
7:18
-
10K
6.21 mi11:19:1945:427:2123:02
7:25
+0:07
15K
9.32 mi11:42:301:08:537:2323:11
7:28
+0:03
20K
12.43 mi12:06:031:32:267:2623:33
7:35
+0:07
Half
13.11 mi12:11:011:37:247:264:58
7:17
-0:18
25K
15.53 mi12:29:291:55:527:2818:28
7:37
+0:20
30K
18.64 mi12:54:182:20:417:3324:49
7:59
+0:22
20M
20.00 mi13:05:422:32:057:3611:24
8:23
+0:24
21M
21.00 mi13:14:332:40:567:408:51
8:51
+0:28
35K
21.75 mi13:20:382:47:017:416:05
8:08
-0:43
23M
23.00 mi13:31:212:57:447:4410:43
8:34
+0:26
24M
24.00 mi13:39:543:06:177:468:33
8:33
-0:01
40K
24.85 mi13:47:183:13:417:487:24
8:39
+0:06
25.2M
25.20 mi13:50:403:17:037:493:22
9:46
+1:07
Finish
26.22 mi13:59:123:25:357:518:32
8:22
-1:24

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

7:17 /mi

Average Pace

7:51 /mi

Slowest Pace

9:46 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:52

56% of race

Time at Steady Pace

50:50

25% of race

Time at Slower Pace

38:53

19% of race

Average Pace: 7:50 /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 mi10:56:1722:407:1822:40
7:18
#10322
10K
6.21 mi11:19:1945:427:2123:02
7:25
#10806
15K
9.32 mi11:42:301:08:537:2323:11
7:28
#10972
20K
12.43 mi12:06:031:32:267:2623:33
7:35
#11095
Half
13.11 mi12:11:011:37:247:264:58
7:17
#11024
25K
15.53 mi12:29:291:55:527:2818:28
7:37
#10969
30K
18.64 mi12:54:182:20:417:3324:49
7:59
#11000
20M
20.00 mi13:05:422:32:057:3611:24
8:23
#11119
21M
21.00 mi13:14:332:40:567:408:51
8:51
#11181
35K
21.75 mi13:20:382:47:017:416:05
8:08
#11232
23M
23.00 mi13:31:212:57:447:4410:43
8:34
#11366
24M
24.00 mi13:39:543:06:177:468:33
8:33
#11513
40K
24.85 mi13:47:183:13:417:487:24
8:39
#11621
25.2M
25.20 mi13:50:403:17:037:493:22
9:46
#11712
Finish
26.22 mi13:59:123:25:357:518:32
8:22
#11863
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi103228346834611425(Top 40%)8801(Top 55%)8801(Top 534%)
10K6.21 mi3.10 mi10806-4848569-2238569-22311302(Top 40%)8804(Top 55%)8804(Top 534%)
15K9.32 mi3.11 mi10972-1668638-698638-6911425(Top 40%)8801(Top 55%)8801(Top 534%)
20K12.43 mi3.11 mi11095-1238673-358673-3511425(Top 40%)8699(Top 54%)8699(Top 528%)
Half13.11 mi0.68 mi11024+718643+308643+309810(Top 35%)7938(Top 49%)7938(Top 482%)
25K15.53 mi2.42 mi10969+558567+768567+7610901(Top 38%)8340(Top 52%)8340(Top 506%)
30K18.64 mi3.11 mi11000-318501+668501+6611281(Top 40%)8333(Top 52%)8333(Top 506%)
20M20.00 mi1.36 mi11119-1198528-278528-2713049(Top 46%)9008(Top 56%)9008(Top 547%)
21M21.00 mi1.00 mi11181-628503+258503+2512585(Top 44%)8633(Top 54%)8633(Top 524%)
35K21.75 mi0.75 mi11232-518509-68509-613102(Top 46%)8838(Top 55%)8838(Top 536%)
23M23.00 mi1.25 mi11366-1348523-148523-1413645(Top 48%)8988(Top 56%)8988(Top 545%)
24M24.00 mi1.00 mi11513-1478560-378560-3714793(Top 52%)9486(Top 59%)9486(Top 576%)
40K24.85 mi0.85 mi11621-1088585-258585-2514347(Top 51%)9146(Top 57%)9146(Top 555%)
25.2M25.20 mi0.35 mi11712-918615-308615-3015842(Top 56%)9779(Top 61%)9779(Top 593%)
Finish26.22 mi1.02 mi11863-1518649-348649-3415363(Top 54%)9643(Top 60%)9643(Top 585%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21story building
+97ft-345ft

Overall

11425

Males

8801

M55-59

8801

5K→10K

3.1 - 6.2 mi

Top 40%
×5story building
+79ft-138ft

Overall

11302

Males

8804

M55-59

8804

10K→15K

6.2 - 9.3 mi

Top 40%
×3story building
+67ft-78ft

Overall

11425

Males

8801

M55-59

8801

15K→20K

9.3 - 12.4 mi

Top 40%
×5story building
+106ft-86ft

Overall

11425

Males

8699

M55-59

8699

20K→Half

12.4 - 13.1 mi

Top 35%
×2story building
+19ft-37ft

Overall

9810

Males

7938

M55-59

7938

Half→25K

13.1 - 15.5 mi

Top 38%
×4story building
+66ft-88ft

Overall

10901

Males

8340

M55-59

8340

25K→30K

15.5 - 18.6 mi

Top 40%
×9story building
+181ft-148ft

Overall

11281

Males

8333

M55-59

8333

30K→20M

18.6 - 20.0 mi

Top 46%
×5story building
+64ft-50ft

Overall

13049

Males

9008

M55-59

9008

20M→21M

20.0 - 21.0 mi

Top 44%
×8story building
+106ft-24ft

Overall

12585

Males

8633

M55-59

8633

21M→35K

21.0 - 21.8 mi

Top 46%
×7story building
+17ft-86ft

Overall

13102

Males

8838

M55-59

8838

35K→23M

21.8 - 23.0 mi

Top 48%
×5story building
+23ft-63ft

Overall

13645

Males

8988

M55-59

8988

23M→24M

23.0 - 24.0 mi

Top 52%
×6story building
+12ft-82ft

Overall

14793

Males

9486

M55-59

9486

24M→40K

24.0 - 24.9 mi

Top 51%
×1story
+6ft-20ft

Overall

14347

Males

9146

M55-59

9146

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

15842

Males

9779

M55-59

9779

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

15363

Males

9643

M55-59

9643

Passing Analysis

Category:
Athletes Passed
1293
Passed By
2834
Net Change
-1541
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10322
5K → 10K102586-484#10322#10806
10K → 15K120286-166#10806#10972
15K → 20K138261-123#10972#11095
20K → Half8514+71#11095#11024
Half → 25K196141+55#11024#10969
25K → 30K226257-31#10969#11000
30K → 20M81200-119#11000#11119
20M → 21M82144-62#11119#11181
21M → 35K4192-51#11181#11232
35K → 23M72206-134#11232#11366
23M → 24M51198-147#11366#11513
24M → 40K49157-108#11513#11621
40K → 25.2M10101-91#11621#11712
25.2M → Finish40191-151#11712#11863
TOTALS12932834-1541
📊

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