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BOSTON MARATHON 2025

Alex Vass

Bib: 2612•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 23%
Gender (Male)
#0 / 16105
Top 36%
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
19:06
Rank: #1614
Start → 5K
6:09/mi
19:06 split
10K· 6.21 mi
38:11
Rank: #1615 (-1)
5K → 10K
6:09/mi
19:05 split
15K· 9.32 mi
57:32
Rank: #1733 (-118)
10K → 15K
6:14/mi
19:21 split
20K· 12.43 mi
1:17:30
Rank: #1926 (-193)
15K → 20K
6:26/mi
19:58 split
Half· 13.11 mi
1:21:51
Rank: #1976 (-50)
20K → Half
6:23/mi
4:21 split
25K· 15.53 mi
1:40:00
Rank: #2975 (-999)
Half → 25K
7:29/mi
18:09 split
30K· 18.64 mi
2:04:49
Rank: #4288 (-1313)
25K → 30K
7:59/mi
24:49 split
20M
2:14:46
Rank: #4414 (-126)
30K → 20M
7:19/mi
9:57 split
21M
2:23:17
Rank: #4802 (-388)
20M → 21M
8:31/mi
8:31 split
35K· 21.75 mi
2:30:18
Rank: #5464 (-662)
21M → 35K
9:23/mi
7:01 split
23M
2:42:06
Rank: #6098 (-634)
35K → 23M
9:25/mi
11:48 split
24M
2:50:32
Rank: #6340 (-242)
23M → 24M
8:26/mi
8:26 split
40K· 24.85 mi
2:57:40
Rank: #6486 (-146)
24M → 40K
8:21/mi
7:08 split
25.2M
3:00:52
Rank: #6579 (-93)
40K → 25.2M
9:17/mi
3:12 split
Finish· 26.22 mi
3:08:24
Rank: #6597 (-18)
25.2M → Finish
7:24/mi
7:32 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:21:51
Pace6:15 /mi
2nd Half
Distance13.11 mi
Time1:46:33
Pace8:08 /mi
📊Positive Split: 30.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:2619:066:0919:06
6:09
-
10K
6.21 mi10:39:3138:116:0919:05
6:09
0:00
15K
9.32 mi10:58:5257:326:1019:21
6:14
+0:05
20K
12.43 mi11:18:501:17:306:1419:58
6:26
+0:12
Half
13.11 mi11:23:111:21:516:154:21
6:23
-0:03
25K
15.53 mi11:41:201:40:006:2618:09
7:29
+1:06
30K
18.64 mi12:06:092:04:496:4224:49
7:59
+0:30
20M
20.00 mi12:16:062:14:466:449:57
7:19
-0:40
21M
21.00 mi12:24:372:23:176:498:31
8:31
+1:12
35K
21.75 mi12:31:382:30:186:557:01
9:23
+0:52
23M
23.00 mi12:43:262:42:067:0311:48
9:25
+0:02
24M
24.00 mi12:51:522:50:327:068:26
8:26
-0:59
40K
24.85 mi12:59:002:57:407:097:08
8:21
-0:05
25.2M
25.20 mi13:02:123:00:527:113:12
9:17
+0:56
Finish
26.22 mi13:09:443:08:247:117:32
7:24
-1:53

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

6:09 /mi

Average Pace

7:11 /mi

Slowest Pace

9:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:21:51

43% of race

Time at Steady Pace

1:00:27

32% of race

Time at Slower Pace

46:06

24% of race

Average Pace: 7:11 /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 mi10:20:2619:066:0919:06
6:09
#1614
10K
6.21 mi10:39:3138:116:0919:05
6:09
#1615
15K
9.32 mi10:58:5257:326:1019:21
6:14
#1733
20K
12.43 mi11:18:501:17:306:1419:58
6:26
#1926
Half
13.11 mi11:23:111:21:516:154:21
6:23
#1976
25K
15.53 mi11:41:201:40:006:2618:09
7:29
#2975
30K
18.64 mi12:06:092:04:496:4224:49
7:59
#4288
20M
20.00 mi12:16:062:14:466:449:57
7:19
#4414
21M
21.00 mi12:24:372:23:176:498:31
8:31
#4802
35K
21.75 mi12:31:382:30:186:557:01
9:23
#5464
23M
23.00 mi12:43:262:42:067:0311:48
9:25
#6098
24M
24.00 mi12:51:522:50:327:068:26
8:26
#6340
40K
24.85 mi12:59:002:57:407:097:08
8:21
#6486
25.2M
25.20 mi13:02:123:00:527:113:12
9:17
#6579
Finish
26.22 mi13:09:443:08:247:117:32
7:24
#6597
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1614153315331989(Top 7%)1895(Top 12%)1895(Top 34%)
10K6.21 mi3.10 mi1615-11536-31536-31654(Top 6%)1575(Top 10%)1575(Top 28%)
15K9.32 mi3.11 mi1733-1181648-1121648-1121989(Top 7%)1895(Top 12%)1895(Top 34%)
20K12.43 mi3.11 mi1926-1931836-1881836-1882689(Top 9%)2559(Top 16%)2559(Top 45%)
Half13.11 mi0.68 mi1976-501886-501886-502990(Top 11%)2857(Top 18%)2857(Top 51%)
25K15.53 mi2.42 mi2975-9992835-9492835-9499826(Top 35%)7765(Top 48%)7765(Top 138%)
30K18.64 mi3.11 mi4288-13134012-11774012-117711266(Top 40%)8318(Top 52%)8318(Top 147%)
20M20.00 mi1.36 mi4414-1264115-1034115-1035935(Top 21%)5158(Top 32%)5158(Top 91%)
21M21.00 mi1.00 mi4802-3884437-3224437-32210531(Top 37%)7620(Top 47%)7620(Top 135%)
35K21.75 mi0.75 mi5464-6624982-5454982-54519846(Top 70%)11887(Top 74%)11887(Top 211%)
23M23.00 mi1.25 mi6098-6345454-4725454-47218322(Top 65%)11120(Top 69%)11120(Top 197%)
24M24.00 mi1.00 mi6340-2425613-1595613-15914050(Top 49%)9149(Top 57%)9149(Top 162%)
40K24.85 mi0.85 mi6486-1465692-795692-7912368(Top 44%)8208(Top 51%)8208(Top 145%)
25.2M25.20 mi0.35 mi6579-935738-465738-4613254(Top 47%)8560(Top 53%)8560(Top 152%)
Finish26.22 mi1.02 mi6597-185719+195719+198395(Top 30%)6134(Top 38%)6134(Top 109%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21story building
+97ft-345ft

Overall

1989

Males

1895

M18-39

1895

5K→10K

3.1 - 6.2 mi

Top 6%
×5story building
+79ft-138ft

Overall

1654

Males

1575

M18-39

1575

10K→15K

6.2 - 9.3 mi

Top 7%
×3story building
+67ft-78ft

Overall

1989

Males

1895

M18-39

1895

15K→20K

9.3 - 12.4 mi

Top 9%
×5story building
+106ft-86ft

Overall

2689

Males

2559

M18-39

2559

20K→Half

12.4 - 13.1 mi

Top 11%
×2story building
+19ft-37ft

Overall

2990

Males

2857

M18-39

2857

Half→25K

13.1 - 15.5 mi

Top 35%
×4story building
+66ft-88ft

Overall

9826

Males

7765

M18-39

7765

25K→30K

15.5 - 18.6 mi

Top 40%
×9story building
+181ft-148ft

Overall

11266

Males

8318

M18-39

8318

30K→20M

18.6 - 20.0 mi

Top 21%
×5story building
+64ft-50ft

Overall

5935

Males

5158

M18-39

5158

20M→21M

20.0 - 21.0 mi

Top 37%
×8story building
+106ft-24ft

Overall

10531

Males

7620

M18-39

7620

21M→35K

21.0 - 21.8 mi

Top 70%
×7story building
+17ft-86ft

Overall

19846

Males

11887

M18-39

11887

35K→23M

21.8 - 23.0 mi

Top 65%
×5story building
+23ft-63ft

Overall

18322

Males

11120

M18-39

11120

23M→24M

23.0 - 24.0 mi

Top 49%
×6story building
+12ft-82ft

Overall

14050

Males

9149

M18-39

9149

24M→40K

24.0 - 24.9 mi

Top 44%
×1story
+6ft-20ft

Overall

12368

Males

8208

M18-39

8208

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

13254

Males

8560

M18-39

8560

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2story building
+22ft-21ft

Overall

8395

Males

6134

M18-39

6134

Passing Analysis

Category:
Athletes Passed
337
Passed By
5320
Net Change
-4983
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1614
5K → 10K8384-1#1614#1615
10K → 15K32150-118#1615#1733
15K → 20K22215-193#1733#1926
20K → Half151-50#1926#1976
Half → 25K31002-999#1976#2975
25K → 30K71320-1313#2975#4288
30K → 20M36162-126#4288#4414
20M → 21M14402-388#4414#4802
21M → 35K4666-662#4802#5464
35K → 23M16650-634#5464#6098
23M → 24M18260-242#6098#6340
24M → 40K22168-146#6340#6486
40K → 25.2M9102-93#6486#6579
25.2M → Finish7088-18#6579#6597
TOTALS3375320-4983
📊

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