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BOSTON MARATHON 2025

Eric Ahern

Bib: 8932•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 19%
Gender (Male)
#0 / 16105
Top 30%
Masters (Masters Men)
#0 / 10463
Top 16%
Division (M45-49)
#0 / 2386
Top 21%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:45
Rank: #5268
Start → 5K
20:45 | 6:41/mi
10K· 6.21 mi
41:23
Rank: #5009 (+259)
5K → 10K
20:38 | 6:38/mi
15K· 9.32 mi
1:02:17
Rank: #5089 (-80)
10K → 15K
20:54 | 6:44/mi
20K· 12.43 mi
1:23:22
Rank: #5071 (+18)
15K → 20K
21:05 | 6:47/mi
Half· 13.11 mi
1:27:53
Rank: #5032 (+39)
20K → Half
4:31 | 6:37/mi
25K· 15.53 mi
1:44:25
Rank: #4990 (+42)
Half → 25K
16:32 | 6:49/mi
30K· 18.64 mi
2:06:07
Rank: #4879 (+111)
25K → 30K
21:42 | 6:59/mi
20M
2:15:53
Rank: #4879
30K → 20M
9:46 | 7:11/mi
21M
2:23:36
Rank: #4932 (-53)
20M → 21M
7:43 | 7:43/mi
35K· 21.75 mi
2:28:55
Rank: #4951 (-19)
21M → 35K
5:19 | 7:06/mi
23M
2:38:12
Rank: #5041 (-90)
35K → 23M
9:17 | 7:25/mi
24M
2:46:09
Rank: #5259 (-218)
23M → 24M
7:57 | 7:57/mi
40K· 24.85 mi
2:52:38
Rank: #5269 (-10)
24M → 40K
6:29 | 7:35/mi
25.2M
2:55:30
Rank: #5279 (-10)
40K → 25.2M
2:52 | 8:19/mi
Finish· 26.22 mi
3:03:18
Rank: #5372 (-93)
25.2M → Finish
7:48 | 7:39/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:53
Pace6:42 /mi
2nd Half
Distance13.11 mi
Time1:35:25
Pace7:17 /mi
📊Positive Split: 8.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:1320:456:4120:45
6:41
-
10K
6.21 mi11:06:5141:236:4020:38
6:38
-0:03
15K
9.32 mi11:27:451:02:176:4120:54
6:44
+0:06
20K
12.43 mi11:48:501:23:226:4221:05
6:47
+0:03
Half
13.11 mi11:53:211:27:536:424:31
6:37
-0:10
25K
15.53 mi12:09:531:44:256:4316:32
6:49
+0:12
30K
18.64 mi12:31:352:06:076:4621:42
6:59
+0:10
20M
20.00 mi12:41:212:15:536:489:46
7:11
+0:12
21M
21.00 mi12:49:042:23:366:507:43
7:43
+0:32
35K
21.75 mi12:54:232:28:556:515:19
7:06
-0:37
23M
23.00 mi13:03:402:38:126:539:17
7:25
+0:19
24M
24.00 mi13:11:372:46:096:557:57
7:57
+0:32
40K
24.85 mi13:18:062:52:386:576:29
7:35
-0:22
25.2M
25.20 mi13:20:582:55:306:582:52
8:19
+0:44
Finish
26.22 mi13:28:463:03:187:007:48
7:39
-0:40

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

6:37 /mi

Average Pace

7:00 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:25

57% of race

Time at Steady Pace

36:47

20% of race

Time at Slower Pace

42:06

23% of race

Average Pace: 6:59 /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 mi10:46:1320:456:4120:45
6:41
#5268
10K
6.21 mi11:06:5141:236:4020:38
6:38
#5009
15K
9.32 mi11:27:451:02:176:4120:54
6:44
#5089
20K
12.43 mi11:48:501:23:226:4221:05
6:47
#5071
Half
13.11 mi11:53:211:27:536:424:31
6:37
#5032
25K
15.53 mi12:09:531:44:256:4316:32
6:49
#4990
30K
18.64 mi12:31:352:06:076:4621:42
6:59
#4879
20M
20.00 mi12:41:212:15:536:489:46
7:11
#4879
21M
21.00 mi12:49:042:23:366:507:43
7:43
#4932
35K
21.75 mi12:54:232:28:556:515:19
7:06
#4951
23M
23.00 mi13:03:402:38:126:539:17
7:25
#5041
24M
24.00 mi13:11:372:46:096:557:57
7:57
#5259
40K
24.85 mi13:18:062:52:386:576:29
7:35
#5269
25.2M
25.20 mi13:20:582:55:306:582:52
8:19
#5279
Finish
26.22 mi13:28:463:03:187:007:48
7:39
#5372
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi5268490349035344(Top 19%)4932(Top 31%)4932(Top 207%)
10K6.21 mi3.10 mi5009+2594669+2344669+2344807(Top 17%)4497(Top 28%)4497(Top 188%)
15K9.32 mi3.11 mi5089-804738-694738-695344(Top 19%)4932(Top 31%)4932(Top 207%)
20K12.43 mi3.11 mi5071+184716+224716+225176(Top 18%)4771(Top 30%)4771(Top 200%)
Half13.11 mi0.68 mi5032+394678+384678+384637(Top 16%)4330(Top 27%)4330(Top 181%)
25K15.53 mi2.42 mi4990+424630+484630+485029(Top 18%)4616(Top 29%)4616(Top 193%)
30K18.64 mi3.11 mi4879+1114513+1174513+1174613(Top 16%)4210(Top 26%)4210(Top 176%)
20M20.00 mi1.36 mi48794510+34510+35138(Top 18%)4587(Top 28%)4587(Top 192%)
21M21.00 mi1.00 mi4932-534545-354545-355730(Top 20%)4890(Top 30%)4890(Top 205%)
35K21.75 mi0.75 mi4951-194550-54550-56015(Top 21%)5072(Top 31%)5072(Top 213%)
23M23.00 mi1.25 mi5041-904619-694619-696129(Top 22%)5045(Top 31%)5045(Top 211%)
24M24.00 mi1.00 mi5259-2184786-1674786-16710846(Top 38%)7582(Top 47%)7582(Top 318%)
40K24.85 mi0.85 mi5269-104787-14787-17278(Top 26%)5584(Top 35%)5584(Top 234%)
25.2M25.20 mi0.35 mi5279-104789-24789-27651(Top 27%)5710(Top 35%)5710(Top 239%)
Finish26.22 mi1.02 mi5372-934846-574846-5710298(Top 36%)7128(Top 44%)7128(Top 299%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

5344

Males

4932

M45-49

4932

5K→10K

3.1 - 6.2 mi

Top 17%
×5stories
+79ft-138ft

Overall

4807

Males

4497

M45-49

4497

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

5344

Males

4932

M45-49

4932

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

5176

Males

4771

M45-49

4771

20K→Half

12.4 - 13.1 mi

Top 16%
×2stories
+19ft-37ft

Overall

4637

Males

4330

M45-49

4330

Half→25K

13.1 - 15.5 mi

Top 18%
×4stories
+66ft-88ft

Overall

5029

Males

4616

M45-49

4616

25K→30K

15.5 - 18.6 mi

Top 16%
×9stories
+181ft-148ft

Overall

4613

Males

4210

M45-49

4210

30K→20M

18.6 - 20.0 mi

Top 18%
×5stories
+64ft-50ft

Overall

5138

Males

4587

M45-49

4587

20M→21M

20.0 - 21.0 mi

Top 20%
×8stories
+106ft-24ft

Overall

5730

Males

4890

M45-49

4890

21M→35K

21.0 - 21.8 mi

Top 21%
×7stories
+17ft-86ft

Overall

6015

Males

5072

M45-49

5072

35K→23M

21.8 - 23.0 mi

Top 22%
×5stories
+23ft-63ft

Overall

6129

Males

5045

M45-49

5045

23M→24M

23.0 - 24.0 mi

Top 38%
×6stories
+12ft-82ft

Overall

10846

Males

7582

M45-49

7582

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

7278

Males

5584

M45-49

5584

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7651

Males

5710

M45-49

5710

25.2M→Finish

25.2 - 26.2 mi

Top 36%
×2stories
+22ft-21ft

Overall

10298

Males

7128

M45-49

7128

Passing Analysis

Category:
Athletes Passed
1265
Passed By
1369
Net Change
-104
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5268
5K → 10K33980+259#5268#5009
10K → 15K93173-80#5009#5089
15K → 20K127109+18#5089#5071
20K → Half5011+39#5071#5032
Half → 25K11977+42#5032#4990
25K → 30K213102+111#4990#4879
30K → 20M73730#4879#4879
20M → 21M4699-53#4879#4932
21M → 35K5069-19#4932#4951
35K → 23M57147-90#4951#5041
23M → 24M15233-218#5041#5259
24M → 40K4757-10#5259#5269
40K → 25.2M1727-10#5269#5279
25.2M → Finish19112-93#5279#5372
TOTALS12651369-104
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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