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BOSTON MARATHON 2025

Justin Arico

Bib: 29852•M

CO

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:46
Rank: #10642
Start → 5K
22:46 | 7:20/mi
10K· 6.21 mi
46:24
Rank: #11831 (-1189)
5K → 10K
23:38 | 7:36/mi
15K· 9.32 mi
1:10:42
Rank: #12734 (-903)
10K → 15K
24:18 | 7:49/mi
20K· 12.43 mi
1:35:53
Rank: #13500 (-766)
15K → 20K
25:11 | 8:06/mi
Half· 13.11 mi
1:41:27
Rank: #13703 (-203)
20K → Half
5:34 | 8:10/mi
25K· 15.53 mi
2:03:02
Rank: #14906 (-1203)
Half → 25K
21:35 | 8:54/mi
30K· 18.64 mi
2:35:51
Rank: #17209 (-2303)
25K → 30K
32:49 | 10:34/mi
20M
2:49:07
Rank: #17495 (-286)
30K → 20M
13:16 | 9:46/mi
21M
2:59:40
Rank: #17723 (-228)
20M → 21M
10:33 | 10:33/mi
35K· 21.75 mi
3:06:45
Rank: #17834 (-111)
21M → 35K
7:05 | 9:28/mi
23M
3:19:23
Rank: #18091 (-257)
35K → 23M
12:38 | 10:05/mi
24M
3:30:07
Rank: #18492 (-401)
23M → 24M
10:44 | 10:44/mi
40K· 24.85 mi
3:43:49
Rank: #19709 (-1217)
24M → 40K
13:42 | 16:01/mi
25.2M
3:49:34
Rank: #20120 (-411)
40K → 25.2M
5:45 | 16:40/mi
Finish· 26.22 mi
3:59:42
Rank: #20309 (-189)
25.2M → Finish
10:08 | 9:57/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:27
Pace7:44 /mi
2nd Half
Distance13.11 mi
Time2:18:15
Pace10:33 /mi
📊Positive Split: 36.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:40:5122:467:2022:46
7:20
-
10K
6.21 mi12:04:2946:247:2823:38
7:36
+0:16
15K
9.32 mi12:28:471:10:427:3524:18
7:49
+0:13
20K
12.43 mi12:53:581:35:537:4325:11
8:06
+0:17
Half
13.11 mi12:59:321:41:277:445:34
8:10
+0:04
25K
15.53 mi13:21:072:03:027:5521:35
8:54
+0:44
30K
18.64 mi13:53:562:35:518:2232:49
10:34
+1:40
20M
20.00 mi14:07:122:49:078:2713:16
9:46
-0:48
21M
21.00 mi14:17:452:59:408:3310:33
10:33
+0:47
35K
21.75 mi14:24:503:06:458:357:05
9:28
-1:05
23M
23.00 mi14:37:283:19:238:4012:38
10:05
+0:37
24M
24.00 mi14:48:123:30:078:4510:44
10:44
+0:39
40K
24.85 mi15:01:543:43:499:0013:42
16:01
+5:17
25.2M
25.20 mi15:07:393:49:349:075:45
16:40
+0:39
Finish
26.22 mi15:17:473:59:429:0910:08
9:57
-6:43

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

7:20 /mi

Average Pace

9:09 /mi

Slowest Pace

16:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:41:27

42% of race

Time at Steady Pace

1:58:48

50% of race

Time at Slower Pace

19:27

8% of race

Average Pace: 9:09 /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 mi11:40:5122:467:2022:46
7:20
#10642
10K
6.21 mi12:04:2946:247:2823:38
7:36
#11831
15K
9.32 mi12:28:471:10:427:3524:18
7:49
#12734
20K
12.43 mi12:53:581:35:537:4325:11
8:06
#13500
Half
13.11 mi12:59:321:41:277:445:34
8:10
#13703
25K
15.53 mi13:21:072:03:027:5521:35
8:54
#14906
30K
18.64 mi13:53:562:35:518:2232:49
10:34
#17209
20M
20.00 mi14:07:122:49:078:2713:16
9:46
#17495
21M
21.00 mi14:17:452:59:408:3310:33
10:33
#17723
35K
21.75 mi14:24:503:06:458:357:05
9:28
#17834
23M
23.00 mi14:37:283:19:238:4012:38
10:05
#18091
24M
24.00 mi14:48:123:30:078:4510:44
10:44
#18492
40K
24.85 mi15:01:543:43:499:0013:42
16:01
#19709
25.2M
25.20 mi15:07:393:49:349:075:45
16:40
#20120
Finish
26.22 mi15:17:473:59:429:0910:08
9:57
#20309
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi106428514851414559(Top 51%)10176(Top 63%)10176(Top 180%)
10K6.21 mi3.10 mi11831-11899082-5689082-56813078(Top 46%)9631(Top 60%)9631(Top 171%)
15K9.32 mi3.11 mi12734-9039471-3899471-38914559(Top 51%)10176(Top 63%)10176(Top 180%)
20K12.43 mi3.11 mi13500-7669734-2639734-26315674(Top 55%)10610(Top 66%)10610(Top 188%)
Half13.11 mi0.68 mi13703-2039812-789812-7817016(Top 60%)11207(Top 70%)11207(Top 199%)
25K15.53 mi2.42 mi14906-120310290-47810290-47819434(Top 68%)12161(Top 76%)12161(Top 216%)
30K18.64 mi3.11 mi17209-230311220-93011220-93023071(Top 81%)13649(Top 85%)13649(Top 242%)
20M20.00 mi1.36 mi17495-28611300-8011300-8020157(Top 71%)12216(Top 76%)12216(Top 217%)
21M21.00 mi1.00 mi17723-22811390-9011390-9020160(Top 71%)12108(Top 75%)12108(Top 215%)
35K21.75 mi0.75 mi17834-11111429-3911429-3920208(Top 71%)12071(Top 75%)12071(Top 214%)
23M23.00 mi1.25 mi18091-25711493-6411493-6420771(Top 73%)12280(Top 76%)12280(Top 218%)
24M24.00 mi1.00 mi18492-40111654-16111654-16123390(Top 82%)13506(Top 84%)13506(Top 239%)
40K24.85 mi0.85 mi19709-121712156-50212156-50228101(Top 99%)15899(Top 99%)15899(Top 282%)
25.2M25.20 mi0.35 mi20120-41112328-17212328-17227970(Top 98%)15804(Top 98%)15804(Top 280%)
Finish26.22 mi1.02 mi20309-18912412-8412412-8422745(Top 80%)13140(Top 82%)13140(Top 233%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21stories
+97ft-345ft

Overall

14559

Males

10176

M18-39

10176

5K→10K

3.1 - 6.2 mi

Top 46%
×5stories
+79ft-138ft

Overall

13078

Males

9631

M18-39

9631

10K→15K

6.2 - 9.3 mi

Top 51%
×3stories
+67ft-78ft

Overall

14559

Males

10176

M18-39

10176

15K→20K

9.3 - 12.4 mi

Top 55%
×5stories
+106ft-86ft

Overall

15674

Males

10610

M18-39

10610

20K→Half

12.4 - 13.1 mi

Top 60%
×2stories
+19ft-37ft

Overall

17016

Males

11207

M18-39

11207

Half→25K

13.1 - 15.5 mi

Top 68%
×4stories
+66ft-88ft

Overall

19434

Males

12161

M18-39

12161

25K→30K

15.5 - 18.6 mi

Top 81%
×9stories
+181ft-148ft

Overall

23071

Males

13649

M18-39

13649

30K→20M

18.6 - 20.0 mi

Top 71%
×5stories
+64ft-50ft

Overall

20157

Males

12216

M18-39

12216

20M→21M

20.0 - 21.0 mi

Top 71%
×8stories
+106ft-24ft

Overall

20160

Males

12108

M18-39

12108

21M→35K

21.0 - 21.8 mi

Top 71%
×7stories
+17ft-86ft

Overall

20208

Males

12071

M18-39

12071

35K→23M

21.8 - 23.0 mi

Top 73%
×5stories
+23ft-63ft

Overall

20771

Males

12280

M18-39

12280

23M→24M

23.0 - 24.0 mi

Top 82%
×6stories
+12ft-82ft

Overall

23390

Males

13506

M18-39

13506

24M→40K

24.0 - 24.9 mi

Top 99%
×1story
+6ft-20ft

Overall

28101

Males

15899

M18-39

15899

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1story
+13ft-16ft

Overall

27970

Males

15804

M18-39

15804

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2stories
+22ft-21ft

Overall

22745

Males

13140

M18-39

13140

Passing Analysis

Category:
Athletes Passed
390
Passed By
10057
Net Change
-9667
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10642
5K → 10K271216-1189#10642#11831
10K → 15K36939-903#11831#12734
15K → 20K60826-766#12734#13500
20K → Half2205-203#13500#13703
Half → 25K301233-1203#13703#14906
25K → 30K92312-2303#14906#17209
30K → 20M47333-286#17209#17495
20M → 21M52280-228#17495#17723
21M → 35K38149-111#17723#17834
35K → 23M47304-257#17834#18091
23M → 24M24425-401#18091#18492
24M → 40K21219-1217#18492#19709
40K → 25.2M1412-411#19709#20120
25.2M → Finish15204-189#20120#20309
TOTALS39010057-9667
📊

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