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BOSTON MARATHON 2025

Bret Deto

Bib: 3839•M

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 15%
Gender (Male)
#0 / 16105
Top 24%
Division (M18-39)
#0 / 5642
Top 49%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:54
Rank: #3153
Start → 5K
19:54 | 6:24/mi
10K· 6.21 mi
40:02
Rank: #3352 (-199)
5K → 10K
20:08 | 6:29/mi
15K· 9.32 mi
1:00:09
Rank: #3347 (+5)
10K → 15K
20:07 | 6:28/mi
20K· 12.43 mi
1:20:40
Rank: #3432 (-85)
15K → 20K
20:31 | 6:36/mi
Half· 13.11 mi
1:25:09
Rank: #3471 (-39)
20K → Half
4:29 | 6:34/mi
25K· 15.53 mi
1:41:27
Rank: #3584 (-113)
Half → 25K
16:18 | 6:43/mi
30K· 18.64 mi
2:03:30
Rank: #3791 (-207)
25K → 30K
22:03 | 7:06/mi
20M
2:13:20
Rank: #3887 (-96)
30K → 20M
9:50 | 7:14/mi
21M
2:21:03
Rank: #3963 (-76)
20M → 21M
7:43 | 7:43/mi
35K· 21.75 mi
2:26:19
Rank: #4022 (-59)
21M → 35K
5:16 | 7:02/mi
23M
2:35:20
Rank: #4045 (-23)
35K → 23M
9:01 | 7:12/mi
24M
2:42:34
Rank: #4109 (-64)
23M → 24M
7:14 | 7:14/mi
40K· 24.85 mi
2:48:46
Rank: #4141 (-32)
24M → 40K
6:12 | 7:15/mi
25.2M
2:51:32
Rank: #4173 (-32)
40K → 25.2M
2:46 | 8:01/mi
Finish· 26.22 mi
2:58:33
Rank: #4193 (-20)
25.2M → Finish
7:01 | 6:53/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:09
Pace6:30 /mi
2nd Half
Distance13.11 mi
Time1:33:24
Pace7:07 /mi
📊Positive Split: 9.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:5419:546:2419:54
6:24
-
10K
6.21 mi10:42:0240:026:2720:08
6:29
+0:05
15K
9.32 mi11:02:091:00:096:2720:07
6:28
-0:01
20K
12.43 mi11:22:401:20:406:2920:31
6:36
+0:08
Half
13.11 mi11:27:091:25:096:304:29
6:34
-0:02
25K
15.53 mi11:43:271:41:276:3216:18
6:43
+0:09
30K
18.64 mi12:05:302:03:306:3822:03
7:06
+0:23
20M
20.00 mi12:15:202:13:206:409:50
7:14
+0:08
21M
21.00 mi12:23:032:21:036:437:43
7:43
+0:29
35K
21.75 mi12:28:192:26:196:445:16
7:02
-0:41
23M
23.00 mi12:37:202:35:206:459:01
7:12
+0:10
24M
24.00 mi12:44:342:42:346:467:14
7:14
+0:02
40K
24.85 mi12:50:462:48:466:476:12
7:15
+0:01
25.2M
25.20 mi12:53:322:51:326:482:46
8:01
+0:46
Finish
26.22 mi13:00:332:58:336:497:01
6:53
-1:08

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

6:24 /mi

Average Pace

6:49 /mi

Slowest Pace

8:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:41:27

57% of race

Time at Steady Pace

1:06:37

37% of race

Time at Slower Pace

10:29

6% of race

Average Pace: 6:49 /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 mi10:21:5419:546:2419:54
6:24
#3153
10K
6.21 mi10:42:0240:026:2720:08
6:29
#3352
15K
9.32 mi11:02:091:00:096:2720:07
6:28
#3347
20K
12.43 mi11:22:401:20:406:2920:31
6:36
#3432
Half
13.11 mi11:27:091:25:096:304:29
6:34
#3471
25K
15.53 mi11:43:271:41:276:3216:18
6:43
#3584
30K
18.64 mi12:05:302:03:306:3822:03
7:06
#3791
20M
20.00 mi12:15:202:13:206:409:50
7:14
#3887
21M
21.00 mi12:23:032:21:036:437:43
7:43
#3963
35K
21.75 mi12:28:192:26:196:445:16
7:02
#4022
23M
23.00 mi12:37:202:35:206:459:01
7:12
#4045
24M
24.00 mi12:44:342:42:346:467:14
7:14
#4109
40K
24.85 mi12:50:462:48:466:476:12
7:15
#4141
25.2M
25.20 mi12:53:322:51:326:482:46
8:01
#4173
Finish
26.22 mi13:00:332:58:336:497:01
6:53
#4193
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3153299629963406(Top 12%)3230(Top 20%)3230(Top 57%)
10K6.21 mi3.10 mi3352-1993183-1873183-1873580(Top 13%)3387(Top 21%)3387(Top 60%)
15K9.32 mi3.11 mi3347+53178+53178+53406(Top 12%)3230(Top 20%)3230(Top 57%)
20K12.43 mi3.11 mi3432-853254-763254-763720(Top 13%)3513(Top 22%)3513(Top 62%)
Half13.11 mi0.68 mi3471-393288-343288-344139(Top 15%)3878(Top 24%)3878(Top 69%)
25K15.53 mi2.42 mi3584-1133390-1023390-1024289(Top 15%)3977(Top 25%)3977(Top 70%)
30K18.64 mi3.11 mi3791-2073574-1843574-1845283(Top 19%)4763(Top 30%)4763(Top 84%)
20M20.00 mi1.36 mi3887-963651-773651-775376(Top 19%)4751(Top 30%)4751(Top 84%)
21M21.00 mi1.00 mi3963-763713-623713-625690(Top 20%)4850(Top 30%)4850(Top 86%)
35K21.75 mi0.75 mi4022-593759-463759-465568(Top 20%)4756(Top 30%)4756(Top 84%)
23M23.00 mi1.25 mi4045-233765-63765-64855(Top 17%)4206(Top 26%)4206(Top 75%)
24M24.00 mi1.00 mi4109-643813-483813-485980(Top 21%)4894(Top 30%)4894(Top 87%)
40K24.85 mi0.85 mi4141-323826-133826-135308(Top 19%)4409(Top 27%)4409(Top 78%)
25.2M25.20 mi0.35 mi4173-323852-263852-265968(Top 21%)4694(Top 29%)4694(Top 83%)
Finish26.22 mi1.02 mi4193-203862-103862-104959(Top 17%)4074(Top 25%)4074(Top 72%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3406

Males

3230

M18-39

3230

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3580

Males

3387

M18-39

3387

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3406

Males

3230

M18-39

3230

15K→20K

9.3 - 12.4 mi

Top 13%
×5stories
+106ft-86ft

Overall

3720

Males

3513

M18-39

3513

20K→Half

12.4 - 13.1 mi

Top 15%
×2stories
+19ft-37ft

Overall

4139

Males

3878

M18-39

3878

Half→25K

13.1 - 15.5 mi

Top 15%
×4stories
+66ft-88ft

Overall

4289

Males

3977

M18-39

3977

25K→30K

15.5 - 18.6 mi

Top 19%
×9stories
+181ft-148ft

Overall

5283

Males

4763

M18-39

4763

30K→20M

18.6 - 20.0 mi

Top 19%
×5stories
+64ft-50ft

Overall

5376

Males

4751

M18-39

4751

20M→21M

20.0 - 21.0 mi

Top 20%
×8stories
+106ft-24ft

Overall

5690

Males

4850

M18-39

4850

21M→35K

21.0 - 21.8 mi

Top 20%
×7stories
+17ft-86ft

Overall

5568

Males

4756

M18-39

4756

35K→23M

21.8 - 23.0 mi

Top 17%
×5stories
+23ft-63ft

Overall

4855

Males

4206

M18-39

4206

23M→24M

23.0 - 24.0 mi

Top 21%
×6stories
+12ft-82ft

Overall

5980

Males

4894

M18-39

4894

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

5308

Males

4409

M18-39

4409

40K→25.2M

24.9 - 25.2 mi

Top 21%
×1story
+13ft-16ft

Overall

5968

Males

4694

M18-39

4694

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2stories
+22ft-21ft

Overall

4959

Males

4074

M18-39

4074

Passing Analysis

Category:
Athletes Passed
637
Passed By
1677
Net Change
-1040
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3153
5K → 10K65264-199#3153#3352
10K → 15K10196+5#3352#3347
15K → 20K74159-85#3347#3432
20K → Half544-39#3432#3471
Half → 25K46159-113#3471#3584
25K → 30K50257-207#3584#3791
30K → 20M38134-96#3791#3887
20M → 21M43119-76#3887#3963
21M → 35K2483-59#3963#4022
35K → 23M6386-23#4022#4045
23M → 24M38102-64#4045#4109
24M → 40K3466-32#4109#4141
40K → 25.2M1244-32#4141#4173
25.2M → Finish4464-20#4173#4193
TOTALS6371677-1040
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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