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BOSTON MARATHON 2025

Ian Danby

Bib: 21572•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M60-64)
#0 / 1259
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:47
Rank: #20570
Start → 5K
8:37/mi
26:47 split
10K· 6.21 mi
56:08
Rank: #22556 (-1986)
5K → 10K
9:27/mi
29:21 split
15K· 9.32 mi
1:29:13
Rank: #24242 (-1686)
10K → 15K
10:39/mi
33:05 split
20K· 12.43 mi
2:03:38
Rank: #24876 (-634)
15K → 20K
11:05/mi
34:25 split
Half· 13.11 mi
2:10:09
Rank: #24814 (+62)
20K → Half
9:33/mi
6:31 split
25K· 15.53 mi
2:36:17
Rank: #24844 (-30)
Half → 25K
10:47/mi
26:08 split
30K· 18.64 mi
3:13:16
Rank: #25003 (-159)
25K → 30K
11:54/mi
36:59 split
20M
3:29:34
Rank: #25032 (-29)
30K → 20M
12:00/mi
16:18 split
21M
3:42:11
Rank: #25018 (+14)
20M → 21M
12:37/mi
12:37 split
35K· 21.75 mi
3:50:12
Rank: #24997 (+21)
21M → 35K
10:43/mi
8:01 split
23M
4:03:57
Rank: #24896 (+101)
35K → 23M
10:59/mi
13:45 split
24M
4:14:07
Rank: #24796 (+100)
23M → 24M
10:10/mi
10:10 split
40K· 24.85 mi
4:23:28
Rank: #24740 (+56)
24M → 40K
10:56/mi
9:21 split
25.2M
4:27:43
Rank: #24727 (+13)
40K → 25.2M
12:19/mi
4:15 split
Finish· 26.22 mi
4:37:55
Rank: #24690 (+37)
25.2M → Finish
10:01/mi
10:12 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:10:09
Pace9:56 /mi
2nd Half
Distance13.11 mi
Time2:27:46
Pace11:16 /mi
📊Positive Split: 13.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:1126:478:3726:47
8:37
-
10K
6.21 mi11:51:3256:089:0229:21
9:27
+0:50
15K
9.32 mi12:24:371:29:139:3433:05
10:39
+1:12
20K
12.43 mi12:59:022:03:389:5734:25
11:05
+0:26
Half
13.11 mi13:05:332:10:099:566:31
9:33
-1:32
25K
15.53 mi13:31:412:36:1710:0426:08
10:47
+1:14
30K
18.64 mi14:08:403:13:1610:2236:59
11:54
+1:07
20M
20.00 mi14:24:583:29:3410:2916:18
12:00
+0:06
21M
21.00 mi14:37:353:42:1110:3512:37
12:37
+0:37
35K
21.75 mi14:45:363:50:1210:358:01
10:43
-1:54
23M
23.00 mi14:59:214:03:5710:3613:45
10:59
+0:16
24M
24.00 mi15:09:314:14:0710:3510:10
10:10
-0:49
40K
24.85 mi15:18:524:23:2810:369:21
10:56
+0:46
25.2M
25.20 mi15:23:074:27:4310:374:15
12:19
+1:23
Finish
26.22 mi15:33:194:37:5510:3610:12
10:01
-2:18

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

8:37 /mi

Average Pace

10:36 /mi

Slowest Pace

12:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:23:01

30% of race

Time at Steady Pace

2:04:45

45% of race

Time at Slower Pace

1:10:09

25% of race

Average Pace: 10:36 /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 mi11:22:1126:478:3726:47
8:37
#20570
10K
6.21 mi11:51:3256:089:0229:21
9:27
#22556
15K
9.32 mi12:24:371:29:139:3433:05
10:39
#24242
20K
12.43 mi12:59:022:03:389:5734:25
11:05
#24876
Half
13.11 mi13:05:332:10:099:566:31
9:33
#24814
25K
15.53 mi13:31:412:36:1710:0426:08
10:47
#24844
30K
18.64 mi14:08:403:13:1610:2236:59
11:54
#25003
20M
20.00 mi14:24:583:29:3410:2916:18
12:00
#25032
21M
21.00 mi14:37:353:42:1110:3512:37
12:37
#25018
35K
21.75 mi14:45:363:50:1210:358:01
10:43
#24997
23M
23.00 mi14:59:214:03:5710:3613:45
10:59
#24896
24M
24.00 mi15:09:314:14:0710:3510:10
10:10
#24796
40K
24.85 mi15:18:524:23:2810:369:21
10:56
#24740
25.2M
25.20 mi15:23:074:27:4310:374:15
12:19
#24727
Finish
26.22 mi15:33:194:37:5510:3610:12
10:01
#24690
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi20570126701267026176(Top 92%)15230(Top 95%)15230(Top 1210%)
10K6.21 mi3.10 mi22556-198613577-90713577-90723970(Top 84%)14245(Top 88%)14245(Top 1131%)
15K9.32 mi3.11 mi24242-168614365-78814365-78826176(Top 92%)15230(Top 95%)15230(Top 1210%)
20K12.43 mi3.11 mi24876-63414650-28514650-28526117(Top 92%)15179(Top 94%)15179(Top 1206%)
Half13.11 mi0.68 mi24814+6214620+3014620+3023701(Top 83%)14104(Top 88%)14104(Top 1120%)
25K15.53 mi2.42 mi24844-3014608+1214608+1224867(Top 88%)14590(Top 91%)14590(Top 1159%)
30K18.64 mi3.11 mi25003-15914660-5214660-5225455(Top 90%)14740(Top 92%)14740(Top 1171%)
20M20.00 mi1.36 mi25032-2914658+214658+225255(Top 89%)14576(Top 91%)14576(Top 1158%)
21M21.00 mi1.00 mi25018+1414638+2014638+2024548(Top 86%)14168(Top 88%)14168(Top 1125%)
35K21.75 mi0.75 mi24997+2114622+1614622+1623617(Top 83%)13701(Top 85%)13701(Top 1088%)
23M23.00 mi1.25 mi24896+10114560+6214560+6223181(Top 82%)13421(Top 83%)13421(Top 1066%)
24M24.00 mi1.00 mi24796+10014500+6014500+6021845(Top 77%)12733(Top 79%)12733(Top 1011%)
40K24.85 mi0.85 mi24740+5614458+4214458+4222997(Top 81%)13244(Top 82%)13244(Top 1052%)
25.2M25.20 mi0.35 mi24727+1314446+1214446+1223860(Top 84%)13705(Top 85%)13705(Top 1089%)
Finish26.22 mi1.02 mi24690+3714426+2014426+2022966(Top 81%)13261(Top 82%)13261(Top 1053%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 92%
×21story building
+97ft-345ft

Overall

26176

Males

15230

M60-64

15230

5K→10K

3.1 - 6.2 mi

Top 84%
×5story building
+79ft-138ft

Overall

23970

Males

14245

M60-64

14245

10K→15K

6.2 - 9.3 mi

Top 92%
×3story building
+67ft-78ft

Overall

26176

Males

15230

M60-64

15230

15K→20K

9.3 - 12.4 mi

Top 92%
×5story building
+106ft-86ft

Overall

26117

Males

15179

M60-64

15179

20K→Half

12.4 - 13.1 mi

Top 83%
×2story building
+19ft-37ft

Overall

23701

Males

14104

M60-64

14104

Half→25K

13.1 - 15.5 mi

Top 88%
×4story building
+66ft-88ft

Overall

24867

Males

14590

M60-64

14590

25K→30K

15.5 - 18.6 mi

Top 90%
×9story building
+181ft-148ft

Overall

25455

Males

14740

M60-64

14740

30K→20M

18.6 - 20.0 mi

Top 89%
×5story building
+64ft-50ft

Overall

25255

Males

14576

M60-64

14576

20M→21M

20.0 - 21.0 mi

Top 86%
×8story building
+106ft-24ft

Overall

24548

Males

14168

M60-64

14168

21M→35K

21.0 - 21.8 mi

Top 83%
×7story building
+17ft-86ft

Overall

23617

Males

13701

M60-64

13701

35K→23M

21.8 - 23.0 mi

Top 82%
×5story building
+23ft-63ft

Overall

23181

Males

13421

M60-64

13421

23M→24M

23.0 - 24.0 mi

Top 77%
×6story building
+12ft-82ft

Overall

21845

Males

12733

M60-64

12733

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

22997

Males

13244

M60-64

13244

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1story
+13ft-16ft

Overall

23860

Males

13705

M60-64

13705

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2story building
+22ft-21ft

Overall

22966

Males

13261

M60-64

13261

Passing Analysis

Category:
Athletes Passed
765
Passed By
4885
Net Change
-4120
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20570
5K → 10K111997-1986#20570#22556
10K → 15K141700-1686#22556#24242
15K → 20K23657-634#24242#24876
20K → Half664+62#24876#24814
Half → 25K94124-30#24814#24844
25K → 30K74233-159#24844#25003
30K → 20M4776-29#25003#25032
20M → 21M5137+14#25032#25018
21M → 35K3615+21#25018#24997
35K → 23M1065+101#24997#24896
23M → 24M1044+100#24896#24796
24M → 40K604+56#24796#24740
40K → 25.2M2613+13#24740#24727
25.2M → Finish5316+37#24727#24690
TOTALS7654885-4120
📊

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