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BOSTON MARATHON 2025

Ian Butler-Hall

Bib: 10637•M

ID

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
8:13/mi
25:32
↑ 97↓ 3451.5%
10K· 6.21 mi
8:01/mi
50:25
↑ 79↓ 1380.4%
15K· 9.32 mi
7:58/mi
1:15:09
↑ 67↓ 78
20K· 12.43 mi
7:59/mi
1:39:58
↑ 106↓ 860.1%
Half· 13.11 mi
7:45/mi
1:45:15
↑ 19↓ 370.5%
25K· 15.53 mi
8:01/mi
2:04:41
↑ 66↓ 880.2%
30K· 18.64 mi
8:28/mi
2:31:00
↑ 181↓ 1480.2%
20M
8:38/mi
2:42:44
↑ 64↓ 500.2%
21M
8:51/mi
2:51:35
↑ 106↓ 241.6%
35K· 21.75 mi
7:12/mi
2:56:58
↑ 17↓ 861.7%
23M
7:39/mi
3:06:33
↑ 23↓ 630.6%
24M
8:07/mi
3:14:40
↓ 821.3%
40K· 24.85 mi
8:47/mi
3:22:11
↓ 200.3%
25.2M
10:23/mi
3:25:46
↑ 13↓ 160.2%
Finish· 26.22 mi
8:12/mi
3:34:07
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:15
Pace8:02 /mi
2nd Half
Distance13.11 mi
Time1:48:52
Pace8:18 /mi
📊Positive Split: 3.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:1325:328:1325:32
8:13
-
10K
6.21 mi11:19:0650:258:0724:53
8:01
-0:12
15K
9.32 mi11:43:501:15:098:0424:44
7:58
-0:03
20K
12.43 mi12:08:391:39:588:0324:49
7:59
+0:01
Half
13.11 mi12:13:561:45:158:025:17
7:45
-0:14
25K
15.53 mi12:33:222:04:418:0219:26
8:01
+0:16
30K
18.64 mi12:59:412:31:008:0626:19
8:28
+0:27
20M
20.00 mi13:11:252:42:448:0811:44
8:38
+0:10
21M
21.00 mi13:20:162:51:358:108:51
8:51
+0:13
35K
21.75 mi13:25:392:56:588:085:23
7:12
-1:39
23M
23.00 mi13:35:143:06:338:079:35
7:39
+0:27
24M
24.00 mi13:43:213:14:408:078:07
8:07
+0:28
40K
24.85 mi13:50:523:22:118:087:31
8:47
+0:40
25.2M
25.20 mi13:54:273:25:468:103:35
10:23
+1:36
Finish
26.22 mi14:02:483:34:078:108:21
8:12
-2:11

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

7:12 /mi

Average Pace

8:10 /mi

Slowest Pace

10:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

20:15

9% of race

Time at Steady Pace

2:42:11

76% of race

Time at Slower Pace

31:41

15% of race

Average Pace: 8:10 /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 mi10:54:1325:328:1325:32
8:13
#18226
10K
6.21 mi11:19:0650:258:0724:53
8:01
#17347
15K
9.32 mi11:43:501:15:098:0424:44
7:58
#16794
20K
12.43 mi12:08:391:39:588:0324:49
7:59
#16268
Half
13.11 mi12:13:561:45:158:025:17
7:45
#16155
25K
15.53 mi12:33:222:04:418:0219:26
8:01
#15763
30K
18.64 mi12:59:412:31:008:0626:19
8:28
#15509
20M
20.00 mi13:11:252:42:448:0811:44
8:38
#15406
21M
21.00 mi13:20:162:51:358:108:51
8:51
#15176
35K
21.75 mi13:25:392:56:588:085:23
7:12
#14839
23M
23.00 mi13:35:143:06:338:079:35
7:39
#14400
24M
24.00 mi13:43:213:14:408:078:07
8:07
#14278
40K
24.85 mi13:50:523:22:118:087:31
8:47
#14291
25.2M
25.20 mi13:54:273:25:468:103:35
10:23
#14365
Finish
26.22 mi14:02:483:34:078:108:21
8:12
#14321
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi18226116921169215730(Top 55%)10692(Top 66%)10692(Top 448%)
10K6.21 mi3.10 mi17347+87911354+33811354+33816543(Top 58%)11046(Top 69%)11046(Top 463%)
15K9.32 mi3.11 mi16794+55311140+21411140+21415730(Top 55%)10692(Top 66%)10692(Top 448%)
20K12.43 mi3.11 mi16268+52610911+22910911+22914825(Top 52%)10234(Top 64%)10234(Top 429%)
Half13.11 mi0.68 mi16155+11310857+5410857+5413738(Top 48%)9787(Top 61%)9787(Top 410%)
25K15.53 mi2.42 mi15763+39210683+17410683+17414002(Top 49%)9756(Top 61%)9756(Top 409%)
30K18.64 mi3.11 mi15509+25410512+17110512+17114576(Top 51%)9870(Top 61%)9870(Top 414%)
20M20.00 mi1.36 mi15406+10310433+7910433+7914614(Top 51%)9737(Top 60%)9737(Top 408%)
21M21.00 mi1.00 mi15176+23010310+12310310+12312596(Top 44%)8644(Top 54%)8644(Top 362%)
35K21.75 mi0.75 mi14839+33710153+15710153+1576594(Top 23%)5460(Top 34%)5460(Top 229%)
23M23.00 mi1.25 mi14400+4399920+2339920+2337618(Top 27%)5948(Top 37%)5948(Top 249%)
24M24.00 mi1.00 mi14278+1229838+829838+8212016(Top 42%)8182(Top 51%)8182(Top 343%)
40K24.85 mi0.85 mi14291-139813+259813+2515117(Top 53%)9493(Top 59%)9493(Top 398%)
25.2M25.20 mi0.35 mi14365-749836-239836-2318554(Top 65%)11086(Top 69%)11086(Top 465%)
Finish26.22 mi1.02 mi14321+449788+489788+4814215(Top 50%)9125(Top 57%)9125(Top 382%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21story building
+97ft-345ft

Overall

15730

Males

10692

M45-49

10692

5K→10K

3.1 - 6.2 mi

Top 58%
×5story building
+79ft-138ft

Overall

16543

Males

11046

M45-49

11046

10K→15K

6.2 - 9.3 mi

Top 55%
×3story building
+67ft-78ft

Overall

15730

Males

10692

M45-49

10692

15K→20K

9.3 - 12.4 mi

Top 52%
×5story building
+106ft-86ft

Overall

14825

Males

10234

M45-49

10234

20K→Half

12.4 - 13.1 mi

Top 48%
×2story building
+19ft-37ft

Overall

13738

Males

9787

M45-49

9787

Half→25K

13.1 - 15.5 mi

Top 49%
×4story building
+66ft-88ft

Overall

14002

Males

9756

M45-49

9756

25K→30K

15.5 - 18.6 mi

Top 51%
×9story building
+181ft-148ft

Overall

14576

Males

9870

M45-49

9870

30K→20M

18.6 - 20.0 mi

Top 51%
×5story building
+64ft-50ft

Overall

14614

Males

9737

M45-49

9737

20M→21M

20.0 - 21.0 mi

Top 44%
×8story building
+106ft-24ft

Overall

12596

Males

8644

M45-49

8644

21M→35K

21.0 - 21.8 mi

Top 23%
×7story building
+17ft-86ft

Overall

6594

Males

5460

M45-49

5460

35K→23M

21.8 - 23.0 mi

Top 27%
×5story building
+23ft-63ft

Overall

7618

Males

5948

M45-49

5948

23M→24M

23.0 - 24.0 mi

Top 42%
×6story building
+12ft-82ft

Overall

12016

Males

8182

M45-49

8182

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

15117

Males

9493

M45-49

9493

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

18554

Males

11086

M45-49

11086

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2story building
+22ft-21ft

Overall

14215

Males

9125

M45-49

9125

Passing Analysis

Category:
Athletes Passed
4441
Passed By
536
Net Change
+3905
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18226
5K → 10K92647+879#18226#17347
10K → 15K58330+553#17347#16794
15K → 20K55226+526#16794#16268
20K → Half1141+113#16268#16155
Half → 25K40715+392#16155#15763
25K → 30K365111+254#15763#15509
30K → 20M16158+103#15509#15406
20M → 21M24515+230#15406#15176
21M → 35K3370+337#15176#14839
35K → 23M4412+439#14839#14400
23M → 24M13715+122#14400#14278
24M → 40K6780-13#14278#14291
40K → 25.2M1589-74#14291#14365
25.2M → Finish9147+44#14365#14321
TOTALS4441536+3905
📊

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