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BOSTON MARATHON 2025

Crispin Flowerday

Bib: 5687•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 12%
Gender (Male)
#0 / 16105
Top 20%
Masters (Masters Men)
#0 / 10463
Top 7%
Division (M45-49)
#0 / 2386
Top 9%
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
6:29/mi
20:08
↑ 97↓ 3451.5%
10K· 6.21 mi
6:33/mi
40:28
↑ 79↓ 1380.4%
15K· 9.32 mi
6:34/mi
1:00:53
↑ 67↓ 78
20K· 12.43 mi
6:35/mi
1:21:19
↑ 106↓ 860.1%
Half· 13.11 mi
6:28/mi
1:25:44
↑ 19↓ 370.5%
25K· 15.53 mi
6:38/mi
1:41:48
↑ 66↓ 880.2%
30K· 18.64 mi
6:51/mi
2:03:06
↑ 181↓ 1480.2%
20M
6:57/mi
2:12:33
↑ 64↓ 500.2%
21M
7:29/mi
2:20:02
↑ 106↓ 241.6%
35K· 21.75 mi
6:40/mi
2:25:01
↑ 17↓ 861.7%
23M
6:55/mi
2:33:40
↑ 23↓ 630.6%
24M
6:47/mi
2:40:27
↓ 821.3%
40K· 24.85 mi
6:49/mi
2:46:17
↓ 200.3%
25.2M
7:38/mi
2:48:55
↑ 13↓ 160.2%
Finish· 26.22 mi
6:48/mi
2:55:51
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:44
Pace6:32 /mi
2nd Half
Distance13.11 mi
Time1:30:07
Pace6:52 /mi
📊Positive Split: 5.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:0720:086:2920:08
6:29
-
10K
6.21 mi10:45:2740:286:3120:20
6:33
+0:04
15K
9.32 mi11:05:521:00:536:3220:25
6:34
+0:01
20K
12.43 mi11:26:181:21:196:3320:26
6:35
+0:01
Half
13.11 mi11:30:431:25:446:324:25
6:28
-0:07
25K
15.53 mi11:46:471:41:486:3316:04
6:38
+0:10
30K
18.64 mi12:08:052:03:066:3621:18
6:51
+0:13
20M
20.00 mi12:17:322:12:336:389:27
6:57
+0:06
21M
21.00 mi12:25:012:20:026:407:29
7:29
+0:32
35K
21.75 mi12:30:002:25:016:404:59
6:40
-0:49
23M
23.00 mi12:38:392:33:406:418:39
6:55
+0:15
24M
24.00 mi12:45:262:40:276:416:47
6:47
-0:08
40K
24.85 mi12:51:162:46:176:415:50
6:49
+0:02
25.2M
25.20 mi12:53:542:48:556:422:38
7:38
+0:49
Finish
26.22 mi13:00:502:55:516:436:56
6:48
-0:50

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

6:28 /mi

Average Pace

6:43 /mi

Slowest Pace

7:38 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:45:44

94% of race

Time at Steady Pace

7:29

4% of race

Time at Slower Pace

2:38

1% of race

Average Pace: 6:42 /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 mi10:25:0720:086:2920:08
6:29
#3702
10K
6.21 mi10:45:2740:286:3120:20
6:33
#3878
15K
9.32 mi11:05:521:00:536:3220:25
6:34
#3907
20K
12.43 mi11:26:181:21:196:3320:26
6:35
#3786
Half
13.11 mi11:30:431:25:446:324:25
6:28
#3767
25K
15.53 mi11:46:471:41:486:3316:04
6:38
#3713
30K
18.64 mi12:08:052:03:066:3621:18
6:51
#3675
20M
20.00 mi12:17:322:12:336:389:27
6:57
#3634
21M
21.00 mi12:25:012:20:026:407:29
7:29
#3662
35K
21.75 mi12:30:002:25:016:404:59
6:40
#3622
23M
23.00 mi12:38:392:33:406:418:39
6:55
#3561
24M
24.00 mi12:45:262:40:276:416:47
6:47
#3505
40K
24.85 mi12:51:162:46:176:415:50
6:49
#3450
25.2M
25.20 mi12:53:542:48:556:422:38
7:38
#3438
Finish
26.22 mi13:00:502:55:516:436:56
6:48
#3444
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi3702350835084035(Top 14%)3800(Top 24%)3800(Top 159%)
10K6.21 mi3.10 mi3878-1763668-1603668-1604042(Top 14%)3803(Top 24%)3803(Top 159%)
15K9.32 mi3.11 mi3907-293685-173685-174035(Top 14%)3800(Top 24%)3800(Top 159%)
20K12.43 mi3.11 mi3786+1213572+1133572+1133568(Top 13%)3378(Top 21%)3378(Top 142%)
Half13.11 mi0.68 mi3767+193556+163556+163545(Top 12%)3361(Top 21%)3361(Top 141%)
25K15.53 mi2.42 mi3713+543506+503506+503640(Top 13%)3427(Top 21%)3427(Top 144%)
30K18.64 mi3.11 mi3675+383469+373469+373786(Top 13%)3500(Top 22%)3500(Top 147%)
20M20.00 mi1.36 mi3634+413429+403429+403836(Top 14%)3529(Top 22%)3529(Top 148%)
21M21.00 mi1.00 mi3662-283446-173446-174538(Top 16%)4028(Top 25%)4028(Top 169%)
35K21.75 mi0.75 mi3622+403405+413405+413307(Top 12%)3023(Top 19%)3023(Top 127%)
23M23.00 mi1.25 mi3561+613346+593346+593265(Top 11%)2976(Top 18%)2976(Top 125%)
24M24.00 mi1.00 mi3505+563289+573289+573416(Top 12%)3071(Top 19%)3071(Top 129%)
40K24.85 mi0.85 mi3450+553235+543235+542978(Top 10%)2687(Top 17%)2687(Top 113%)
25.2M25.20 mi0.35 mi3438+123220+153220+154053(Top 14%)3469(Top 22%)3469(Top 145%)
Finish26.22 mi1.02 mi3444-6322032204520(Top 16%)3812(Top 24%)3812(Top 160%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21story building
+97ft-345ft

Overall

4035

Males

3800

M45-49

3800

5K→10K

3.1 - 6.2 mi

Top 14%
×5story building
+79ft-138ft

Overall

4042

Males

3803

M45-49

3803

10K→15K

6.2 - 9.3 mi

Top 14%
×3story building
+67ft-78ft

Overall

4035

Males

3800

M45-49

3800

15K→20K

9.3 - 12.4 mi

Top 13%
×5story building
+106ft-86ft

Overall

3568

Males

3378

M45-49

3378

20K→Half

12.4 - 13.1 mi

Top 12%
×2story building
+19ft-37ft

Overall

3545

Males

3361

M45-49

3361

Half→25K

13.1 - 15.5 mi

Top 13%
×4story building
+66ft-88ft

Overall

3640

Males

3427

M45-49

3427

25K→30K

15.5 - 18.6 mi

Top 13%
×9story building
+181ft-148ft

Overall

3786

Males

3500

M45-49

3500

30K→20M

18.6 - 20.0 mi

Top 14%
×5story building
+64ft-50ft

Overall

3836

Males

3529

M45-49

3529

20M→21M

20.0 - 21.0 mi

Top 16%
×8story building
+106ft-24ft

Overall

4538

Males

4028

M45-49

4028

21M→35K

21.0 - 21.8 mi

Top 12%
×7story building
+17ft-86ft

Overall

3307

Males

3023

M45-49

3023

35K→23M

21.8 - 23.0 mi

Top 11%
×5story building
+23ft-63ft

Overall

3265

Males

2976

M45-49

2976

23M→24M

23.0 - 24.0 mi

Top 12%
×6story building
+12ft-82ft

Overall

3416

Males

3071

M45-49

3071

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2978

Males

2687

M45-49

2687

40K→25.2M

24.9 - 25.2 mi

Top 14%
×1story
+13ft-16ft

Overall

4053

Males

3469

M45-49

3469

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2story building
+22ft-21ft

Overall

4520

Males

3812

M45-49

3812

Passing Analysis

Category:
Athletes Passed
1040
Passed By
782
Net Change
+258
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3702
5K → 10K76252-176#3702#3878
10K → 15K88117-29#3878#3907
15K → 20K15029+121#3907#3786
20K → Half256+19#3786#3767
Half → 25K9339+54#3767#3713
25K → 30K12991+38#3713#3675
30K → 20M7534+41#3675#3634
20M → 21M4068-28#3634#3662
21M → 35K5313+40#3662#3622
35K → 23M9130+61#3622#3561
23M → 24M7822+56#3561#3505
24M → 40K7419+55#3505#3450
40K → 25.2M2311+12#3450#3438
25.2M → Finish4551-6#3438#3444
TOTALS1040782+258
📊

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