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BOSTON MARATHON 2025

Adam Sandelovsky

Bib: 7703•M

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 16%
Gender (Male)
#0 / 16105
Top 26%
Masters (Masters Men)
#0 / 10463
Top 12%
Division (M40-44)
#0 / 2247
Top 32%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:54
Rank: #5690
Start → 5K
20:54 | 6:44/mi
10K· 6.21 mi
41:59
Rank: #5896 (-206)
5K → 10K
21:05 | 6:47/mi
15K· 9.32 mi
1:03:08
Rank: #5938 (-42)
10K → 15K
21:09 | 6:48/mi
20K· 12.43 mi
1:24:32
Rank: #5962 (-24)
15K → 20K
21:24 | 6:53/mi
Half· 13.11 mi
1:29:10
Rank: #5970 (-8)
20K → Half
4:38 | 6:47/mi
25K· 15.53 mi
1:45:44
Rank: #5774 (+196)
Half → 25K
16:34 | 6:50/mi
30K· 18.64 mi
2:07:21
Rank: #5435 (+339)
25K → 30K
21:37 | 6:57/mi
20M
2:16:53
Rank: #5309 (+126)
30K → 20M
9:32 | 7:01/mi
21M
2:24:16
Rank: #5200 (+109)
20M → 21M
7:23 | 7:23/mi
35K· 21.75 mi
2:29:22
Rank: #5143 (+57)
21M → 35K
5:06 | 6:49/mi
23M
2:38:03
Rank: #4979 (+164)
35K → 23M
8:41 | 6:56/mi
24M
2:44:52
Rank: #4885 (+94)
23M → 24M
6:49 | 6:49/mi
40K· 24.85 mi
2:50:43
Rank: #4775 (+110)
24M → 40K
5:51 | 6:51/mi
25.2M
2:53:13
Rank: #4717 (+58)
40K → 25.2M
2:30 | 7:15/mi
Finish· 26.22 mi
2:59:47
Rank: #4625 (+92)
25.2M → Finish
6:34 | 6:27/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:10
Pace6:48 /mi
2nd Half
Distance13.11 mi
Time1:30:37
Pace6:55 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:28:4420:546:4420:54
6:44
-
10K
6.21 mi10:49:4941:596:4521:05
6:47
+0:03
15K
9.32 mi11:10:581:03:086:4621:09
6:48
+0:01
20K
12.43 mi11:32:221:24:326:4821:24
6:53
+0:05
Half
13.11 mi11:37:001:29:106:484:38
6:47
-0:06
25K
15.53 mi11:53:341:45:446:4816:34
6:50
+0:03
30K
18.64 mi12:15:112:07:216:5021:37
6:57
+0:07
20M
20.00 mi12:24:432:16:536:519:32
7:01
+0:04
21M
21.00 mi12:32:062:24:166:527:23
7:23
+0:22
35K
21.75 mi12:37:122:29:226:525:06
6:49
-0:34
23M
23.00 mi12:45:532:38:036:528:41
6:56
+0:07
24M
24.00 mi12:52:422:44:526:526:49
6:49
-0:07
40K
24.85 mi12:58:332:50:436:525:51
6:51
+0:02
25.2M
25.20 mi13:01:032:53:136:522:30
7:15
+0:24
Finish
26.22 mi13:07:372:59:476:526:34
6:27
-0:48

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

6:27 /mi

Average Pace

6:52 /mi

Slowest Pace

7:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:49:54

95% of race

Time at Steady Pace

9:53

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:51 /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 mi10:28:4420:546:4420:54
6:44
#5690
10K
6.21 mi10:49:4941:596:4521:05
6:47
#5896
15K
9.32 mi11:10:581:03:086:4621:09
6:48
#5938
20K
12.43 mi11:32:221:24:326:4821:24
6:53
#5962
Half
13.11 mi11:37:001:29:106:484:38
6:47
#5970
25K
15.53 mi11:53:341:45:446:4816:34
6:50
#5774
30K
18.64 mi12:15:112:07:216:5021:37
6:57
#5435
20M
20.00 mi12:24:432:16:536:519:32
7:01
#5309
21M
21.00 mi12:32:062:24:166:527:23
7:23
#5200
35K
21.75 mi12:37:122:29:226:525:06
6:49
#5143
23M
23.00 mi12:45:532:38:036:528:41
6:56
#4979
24M
24.00 mi12:52:422:44:526:526:49
6:49
#4885
40K
24.85 mi12:58:332:50:436:525:51
6:51
#4775
25.2M
25.20 mi13:01:032:53:136:522:30
7:15
#4717
Finish
26.22 mi13:07:372:59:476:526:34
6:27
#4625
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi5690525752576153(Top 22%)5583(Top 35%)5583(Top 248%)
10K6.21 mi3.10 mi5896-2065421-1645421-1646240(Top 22%)5677(Top 35%)5677(Top 253%)
15K9.32 mi3.11 mi5938-425445-245445-246153(Top 22%)5583(Top 35%)5583(Top 248%)
20K12.43 mi3.11 mi5962-245454-95454-96098(Top 21%)5511(Top 34%)5511(Top 245%)
Half13.11 mi0.68 mi5970-85457-35457-36086(Top 21%)5507(Top 34%)5507(Top 245%)
25K15.53 mi2.42 mi5774+1965288+1695288+1695143(Top 18%)4718(Top 29%)4718(Top 210%)
30K18.64 mi3.11 mi5435+3394985+3034985+3034442(Top 16%)4065(Top 25%)4065(Top 181%)
20M20.00 mi1.36 mi5309+1264865+1204865+1204210(Top 15%)3849(Top 24%)3849(Top 171%)
21M21.00 mi1.00 mi5200+1094769+964769+964044(Top 14%)3667(Top 23%)3667(Top 163%)
35K21.75 mi0.75 mi5143+574715+544715+544245(Top 15%)3798(Top 24%)3798(Top 169%)
23M23.00 mi1.25 mi4979+1644564+1514564+1513430(Top 12%)3118(Top 19%)3118(Top 139%)
24M24.00 mi1.00 mi4885+944476+884476+883627(Top 13%)3246(Top 20%)3246(Top 144%)
40K24.85 mi0.85 mi4775+1104378+984378+983083(Top 11%)2779(Top 17%)2779(Top 124%)
25.2M25.20 mi0.35 mi4717+584323+554323+552389(Top 8%)2142(Top 13%)2142(Top 95%)
Finish26.22 mi1.02 mi4625+924240+834240+832549(Top 9%)2318(Top 14%)2318(Top 103%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21stories
+97ft-345ft

Overall

6153

Males

5583

M40-44

5583

5K→10K

3.1 - 6.2 mi

Top 22%
×5stories
+79ft-138ft

Overall

6240

Males

5677

M40-44

5677

10K→15K

6.2 - 9.3 mi

Top 22%
×3stories
+67ft-78ft

Overall

6153

Males

5583

M40-44

5583

15K→20K

9.3 - 12.4 mi

Top 21%
×5stories
+106ft-86ft

Overall

6098

Males

5511

M40-44

5511

20K→Half

12.4 - 13.1 mi

Top 21%
×2stories
+19ft-37ft

Overall

6086

Males

5507

M40-44

5507

Half→25K

13.1 - 15.5 mi

Top 18%
×4stories
+66ft-88ft

Overall

5143

Males

4718

M40-44

4718

25K→30K

15.5 - 18.6 mi

Top 16%
×9stories
+181ft-148ft

Overall

4442

Males

4065

M40-44

4065

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

4210

Males

3849

M40-44

3849

20M→21M

20.0 - 21.0 mi

Top 14%
×8stories
+106ft-24ft

Overall

4044

Males

3667

M40-44

3667

21M→35K

21.0 - 21.8 mi

Top 15%
×7stories
+17ft-86ft

Overall

4245

Males

3798

M40-44

3798

35K→23M

21.8 - 23.0 mi

Top 12%
×5stories
+23ft-63ft

Overall

3430

Males

3118

M40-44

3118

23M→24M

23.0 - 24.0 mi

Top 13%
×6stories
+12ft-82ft

Overall

3627

Males

3246

M40-44

3246

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

3083

Males

2779

M40-44

2779

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

2389

Males

2142

M40-44

2142

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2stories
+22ft-21ft

Overall

2549

Males

2318

M40-44

2318

Passing Analysis

Category:
Athletes Passed
1872
Passed By
807
Net Change
+1065
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5690
5K → 10K95301-206#5690#5896
10K → 15K121163-42#5896#5938
15K → 20K131155-24#5938#5962
20K → Half1624-8#5962#5970
Half → 25K22428+196#5970#5774
25K → 30K36728+339#5774#5435
30K → 20M14620+126#5435#5309
20M → 21M14031+109#5309#5200
21M → 35K7114+57#5200#5143
35K → 23M17410+164#5143#4979
23M → 24M11420+94#4979#4885
24M → 40K1166+110#4885#4775
40K → 25.2M613+58#4775#4717
25.2M → Finish964+92#4717#4625
TOTALS1872807+1065
📊

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