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BOSTON MARATHON 2025

Andrew Erk

Bib: 3766•M

IN

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 9%
Gender (Male)
#0 / 16105
Top 15%
Division (M18-39)
#0 / 5642
Top 34%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:52
Rank: #3087
Start → 5K
19:52 | 6:24/mi
10K· 6.21 mi
39:36
Rank: #2868 (+219)
5K → 10K
19:44 | 6:21/mi
15K· 9.32 mi
59:08
Rank: #2666 (+202)
10K → 15K
19:32 | 6:17/mi
20K· 12.43 mi
1:18:45
Rank: #2473 (+193)
15K → 20K
19:37 | 6:19/mi
Half· 13.11 mi
1:22:59
Rank: #2441 (+32)
20K → Half
4:14 | 6:12/mi
25K· 15.53 mi
1:38:17
Rank: #2326 (+115)
Half → 25K
15:18 | 6:19/mi
30K· 18.64 mi
1:58:28
Rank: #2206 (+120)
25K → 30K
20:11 | 6:30/mi
20M
2:07:22
Rank: #2162 (+44)
30K → 20M
8:54 | 6:33/mi
21M
2:14:17
Rank: #2131 (+31)
20M → 21M
6:55 | 6:55/mi
35K· 21.75 mi
2:19:05
Rank: #2111 (+20)
21M → 35K
4:48 | 6:25/mi
23M
2:27:57
Rank: #2181 (-70)
35K → 23M
8:52 | 7:05/mi
24M
2:34:30
Rank: #2149 (+32)
23M → 24M
6:33 | 6:33/mi
40K· 24.85 mi
2:41:20
Rank: #2358 (-209)
24M → 40K
6:50 | 8:00/mi
25.2M
2:44:16
Rank: #2441 (-83)
40K → 25.2M
2:56 | 8:30/mi
Finish· 26.22 mi
2:51:28
Rank: #2528 (-87)
25.2M → Finish
7:12 | 7:04/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:59
Pace6:20 /mi
2nd Half
Distance13.11 mi
Time1:28:29
Pace6:45 /mi
📊Positive Split: 6.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:2119:526:2419:52
6:24
-
10K
6.21 mi10:42:0539:366:2219:44
6:21
-0:03
15K
9.32 mi11:01:3759:086:2119:32
6:17
-0:04
20K
12.43 mi11:21:141:18:456:2019:37
6:19
+0:02
Half
13.11 mi11:25:281:22:596:204:14
6:12
-0:07
25K
15.53 mi11:40:461:38:176:2015:18
6:19
+0:07
30K
18.64 mi12:00:571:58:286:2120:11
6:30
+0:11
20M
20.00 mi12:09:512:07:226:228:54
6:33
+0:03
21M
21.00 mi12:16:462:14:176:246:55
6:55
+0:22
35K
21.75 mi12:21:342:19:056:244:48
6:25
-0:30
23M
23.00 mi12:30:262:27:576:268:52
7:05
+0:40
24M
24.00 mi12:36:592:34:306:266:33
6:33
-0:32
40K
24.85 mi12:43:492:41:206:296:50
8:00
+1:27
25.2M
25.20 mi12:46:452:44:166:312:56
8:30
+0:30
Finish
26.22 mi12:53:572:51:286:337:12
7:04
-1:26

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

6:12 /mi

Average Pace

6:33 /mi

Slowest Pace

8:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:18:43

81% of race

Time at Slower Pace

32:45

19% of race

Average Pace: 6:32 /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 mi10:22:2119:526:2419:52
6:24
#3087
10K
6.21 mi10:42:0539:366:2219:44
6:21
#2868
15K
9.32 mi11:01:3759:086:2119:32
6:17
#2666
20K
12.43 mi11:21:141:18:456:2019:37
6:19
#2473
Half
13.11 mi11:25:281:22:596:204:14
6:12
#2441
25K
15.53 mi11:40:461:38:176:2015:18
6:19
#2326
30K
18.64 mi12:00:571:58:286:2120:11
6:30
#2206
20M
20.00 mi12:09:512:07:226:228:54
6:33
#2162
21M
21.00 mi12:16:462:14:176:246:55
6:55
#2131
35K
21.75 mi12:21:342:19:056:244:48
6:25
#2111
23M
23.00 mi12:30:262:27:576:268:52
7:05
#2181
24M
24.00 mi12:36:592:34:306:266:33
6:33
#2149
40K
24.85 mi12:43:492:41:206:296:50
8:00
#2358
25.2M
25.20 mi12:46:452:44:166:312:56
8:30
#2441
Finish
26.22 mi12:53:572:51:286:337:12
7:04
#2528
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3087293229322295(Top 8%)2190(Top 14%)2190(Top 39%)
10K6.21 mi3.10 mi2868+2192732+2002732+2002751(Top 10%)2621(Top 16%)2621(Top 46%)
15K9.32 mi3.11 mi2666+2022542+1902542+1902295(Top 8%)2190(Top 14%)2190(Top 39%)
20K12.43 mi3.11 mi2473+1932360+1822360+1822081(Top 7%)1985(Top 12%)1985(Top 35%)
Half13.11 mi0.68 mi2441+322331+292331+292051(Top 7%)1960(Top 12%)1960(Top 35%)
25K15.53 mi2.42 mi2326+1152219+1122219+1121927(Top 7%)1833(Top 11%)1833(Top 32%)
30K18.64 mi3.11 mi2206+1202103+1162103+1161977(Top 7%)1880(Top 12%)1880(Top 33%)
20M20.00 mi1.36 mi2162+442060+432060+431832(Top 6%)1736(Top 11%)1736(Top 31%)
21M21.00 mi1.00 mi2131+312030+302030+301959(Top 7%)1848(Top 11%)1848(Top 33%)
35K21.75 mi0.75 mi2111+202010+202010+202115(Top 7%)1982(Top 12%)1982(Top 35%)
23M23.00 mi1.25 mi2181-702076-662076-664236(Top 15%)3765(Top 23%)3765(Top 67%)
24M24.00 mi1.00 mi2149+322044+322044+322267(Top 8%)2099(Top 13%)2099(Top 37%)
40K24.85 mi0.85 mi2358-2092242-1982242-19810091(Top 36%)7082(Top 44%)7082(Top 126%)
25.2M25.20 mi0.35 mi2441-832315-732315-738743(Top 31%)6302(Top 39%)6302(Top 112%)
Finish26.22 mi1.02 mi2528-872395-802395-806141(Top 22%)4817(Top 30%)4817(Top 85%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2295

Males

2190

M18-39

2190

5K→10K

3.1 - 6.2 mi

Top 10%
×5stories
+79ft-138ft

Overall

2751

Males

2621

M18-39

2621

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2295

Males

2190

M18-39

2190

15K→20K

9.3 - 12.4 mi

Top 7%
×5stories
+106ft-86ft

Overall

2081

Males

1985

M18-39

1985

20K→Half

12.4 - 13.1 mi

Top 7%
×2stories
+19ft-37ft

Overall

2051

Males

1960

M18-39

1960

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

1927

Males

1833

M18-39

1833

25K→30K

15.5 - 18.6 mi

Top 7%
×9stories
+181ft-148ft

Overall

1977

Males

1880

M18-39

1880

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1832

Males

1736

M18-39

1736

20M→21M

20.0 - 21.0 mi

Top 7%
×8stories
+106ft-24ft

Overall

1959

Males

1848

M18-39

1848

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

2115

Males

1982

M18-39

1982

35K→23M

21.8 - 23.0 mi

Top 15%
×5stories
+23ft-63ft

Overall

4236

Males

3765

M18-39

3765

23M→24M

23.0 - 24.0 mi

Top 8%
×6stories
+12ft-82ft

Overall

2267

Males

2099

M18-39

2099

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

10091

Males

7082

M18-39

7082

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8743

Males

6302

M18-39

6302

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2stories
+22ft-21ft

Overall

6141

Males

4817

M18-39

4817

Passing Analysis

Category:
Athletes Passed
1227
Passed By
668
Net Change
+559
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3087
5K → 10K27051+219#3087#2868
10K → 15K2119+202#2868#2666
15K → 20K1996+193#2666#2473
20K → Half342+32#2473#2441
Half → 25K1249+115#2441#2326
25K → 30K14828+120#2326#2206
30K → 20M6016+44#2206#2162
20M → 21M5322+31#2162#2131
21M → 35K3212+20#2131#2111
35K → 23M2292-70#2111#2181
23M → 24M4816+32#2181#2149
24M → 40K10219-209#2149#2358
40K → 25.2M285-83#2358#2441
25.2M → Finish14101-87#2441#2528
TOTALS1227668+559
📊

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