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BOSTON MARATHON 2025

Eric Wieffering

Bib: 23383•M

MN

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M65-69)
#0 / 639
Top 30%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:35/mi
26:41
↑ 97↓ 3451.5%
10K· 6.21 mi
8:26/mi
52:53
↑ 79↓ 1380.4%
15K· 9.32 mi
8:25/mi
1:19:01
↑ 67↓ 78
20K· 12.43 mi
8:33/mi
1:45:36
↑ 106↓ 860.1%
Half· 13.11 mi
8:17/mi
1:51:15
↑ 19↓ 370.5%
25K· 15.53 mi
8:24/mi
2:11:36
↑ 66↓ 880.2%
30K· 18.64 mi
8:40/mi
2:38:31
↑ 181↓ 1480.2%
20M
8:55/mi
2:50:38
↑ 64↓ 500.2%
21M
10:45/mi
3:01:23
↑ 106↓ 241.6%
35K· 21.75 mi
8:37/mi
3:07:50
↑ 17↓ 861.7%
23M
9:35/mi
3:19:50
↑ 23↓ 630.6%
24M
10:12/mi
3:30:02
↓ 821.3%
40K· 24.85 mi
10:34/mi
3:39:04
↓ 200.3%
25.2M
10:44/mi
3:42:46
↑ 13↓ 160.2%
Finish· 26.22 mi
9:57/mi
3:52:54
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:15
Pace8:29 /mi
2nd Half
Distance13.11 mi
Time2:01:39
Pace9:17 /mi
📊Positive Split: 9.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:5326:418:3526:41
8:35
-
10K
6.21 mi11:49:0552:538:3126:12
8:26
-0:09
15K
9.32 mi12:15:131:19:018:2926:08
8:25
-0:01
20K
12.43 mi12:41:481:45:368:3026:35
8:33
+0:08
Half
13.11 mi12:47:271:51:158:295:39
8:17
-0:16
25K
15.53 mi13:07:482:11:368:2820:21
8:24
+0:07
30K
18.64 mi13:34:432:38:318:3026:55
8:40
+0:16
20M
20.00 mi13:46:502:50:388:3212:07
8:55
+0:15
21M
21.00 mi13:57:353:01:238:3810:45
10:45
+1:50
35K
21.75 mi14:04:023:07:508:386:27
8:37
-2:08
23M
23.00 mi14:16:023:19:508:4112:00
9:35
+0:58
24M
24.00 mi14:26:143:30:028:4510:12
10:12
+0:37
40K
24.85 mi14:35:163:39:048:499:02
10:34
+0:22
25.2M
25.20 mi14:38:583:42:468:503:42
10:44
+0:10
Finish
26.22 mi14:49:063:52:548:5310:08
9:57
-0:47

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

8:17 /mi

Average Pace

8:53 /mi

Slowest Pace

10:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:57:05

76% of race

Time at Slower Pace

55:49

24% of race

Average Pace: 8:53 /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 mi11:22:5326:418:3526:41
8:35
#20384
10K
6.21 mi11:49:0552:538:3126:12
8:26
#19905
15K
9.32 mi12:15:131:19:018:2926:08
8:25
#19524
20K
12.43 mi12:41:481:45:368:3026:35
8:33
#19247
Half
13.11 mi12:47:271:51:158:295:39
8:17
#19169
25K
15.53 mi13:07:482:11:368:2820:21
8:24
#18741
30K
18.64 mi13:34:432:38:318:3026:55
8:40
#18151
20M
20.00 mi13:46:502:50:388:3212:07
8:55
#17976
21M
21.00 mi13:57:353:01:238:3810:45
10:45
#18234
35K
21.75 mi14:04:023:07:508:386:27
8:37
#18151
23M
23.00 mi14:16:023:19:508:4112:00
9:35
#18212
24M
24.00 mi14:26:143:30:028:4510:12
10:12
#18473
40K
24.85 mi14:35:163:39:048:499:02
10:34
#18705
25.2M
25.20 mi14:38:583:42:468:503:42
10:44
#18726
Finish
26.22 mi14:49:063:52:548:5310:08
9:57
#18930
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi20384125901259018773(Top 66%)11953(Top 74%)11953(Top 1871%)
10K6.21 mi3.10 mi19905+47912433+15712433+15719378(Top 68%)12227(Top 76%)12227(Top 1913%)
15K9.32 mi3.11 mi19524+38112279+15412279+15418773(Top 66%)11953(Top 74%)11953(Top 1871%)
20K12.43 mi3.11 mi19247+27712145+13412145+13418570(Top 65%)11854(Top 74%)11854(Top 1855%)
Half13.11 mi0.68 mi19169+7812109+3612109+3617803(Top 63%)11548(Top 72%)11548(Top 1807%)
25K15.53 mi2.42 mi18741+42811920+18911920+18916527(Top 58%)10890(Top 68%)10890(Top 1704%)
30K18.64 mi3.11 mi18151+59011620+30011620+30015787(Top 56%)10413(Top 65%)10413(Top 1630%)
20M20.00 mi1.36 mi17976+17511517+10311517+10316338(Top 58%)10510(Top 65%)10510(Top 1645%)
21M21.00 mi1.00 mi18234-25811610-9311610-9320704(Top 73%)12352(Top 77%)12352(Top 1933%)
35K21.75 mi0.75 mi18151+8311560+5011560+5016186(Top 57%)10269(Top 64%)10269(Top 1607%)
23M23.00 mi1.25 mi18212-6111552+811552+819016(Top 67%)11446(Top 71%)11446(Top 1791%)
24M24.00 mi1.00 mi18473-26111645-9311645-9321920(Top 77%)12766(Top 79%)12766(Top 1998%)
40K24.85 mi0.85 mi18705-23211716-7111716-7122084(Top 78%)12782(Top 79%)12782(Top 2000%)
25.2M25.20 mi0.35 mi18726-2111715+111715+119787(Top 70%)11685(Top 73%)11685(Top 1829%)
Finish26.22 mi1.02 mi18930-20411790-7511790-7522742(Top 80%)13137(Top 82%)13137(Top 2056%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21story building
+97ft-345ft

Overall

18773

Males

11953

M65-69

11953

5K→10K

3.1 - 6.2 mi

Top 68%
×5story building
+79ft-138ft

Overall

19378

Males

12227

M65-69

12227

10K→15K

6.2 - 9.3 mi

Top 66%
×3story building
+67ft-78ft

Overall

18773

Males

11953

M65-69

11953

15K→20K

9.3 - 12.4 mi

Top 65%
×5story building
+106ft-86ft

Overall

18570

Males

11854

M65-69

11854

20K→Half

12.4 - 13.1 mi

Top 63%
×2story building
+19ft-37ft

Overall

17803

Males

11548

M65-69

11548

Half→25K

13.1 - 15.5 mi

Top 58%
×4story building
+66ft-88ft

Overall

16527

Males

10890

M65-69

10890

25K→30K

15.5 - 18.6 mi

Top 56%
×9story building
+181ft-148ft

Overall

15787

Males

10413

M65-69

10413

30K→20M

18.6 - 20.0 mi

Top 58%
×5story building
+64ft-50ft

Overall

16338

Males

10510

M65-69

10510

20M→21M

20.0 - 21.0 mi

Top 73%
×8story building
+106ft-24ft

Overall

20704

Males

12352

M65-69

12352

21M→35K

21.0 - 21.8 mi

Top 57%
×7story building
+17ft-86ft

Overall

16186

Males

10269

M65-69

10269

35K→23M

21.8 - 23.0 mi

Top 67%
×5story building
+23ft-63ft

Overall

19016

Males

11446

M65-69

11446

23M→24M

23.0 - 24.0 mi

Top 77%
×6story building
+12ft-82ft

Overall

21920

Males

12766

M65-69

12766

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

22084

Males

12782

M65-69

12782

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

19787

Males

11685

M65-69

11685

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2story building
+22ft-21ft

Overall

22742

Males

13137

M65-69

13137

Passing Analysis

Category:
Athletes Passed
3037
Passed By
1583
Net Change
+1454
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20384
5K → 10K604125+479#20384#19905
10K → 15K43150+381#19905#19524
15K → 20K34164+277#19524#19247
20K → Half868+78#19247#19169
Half → 25K4335+428#19169#18741
25K → 30K61424+590#18741#18151
30K → 20M20934+175#18151#17976
20M → 21M35293-258#17976#18234
21M → 35K9310+83#18234#18151
35K → 23M86147-61#18151#18212
23M → 24M34295-261#18212#18473
24M → 40K27259-232#18473#18705
40K → 25.2M2748-21#18705#18726
25.2M → Finish17221-204#18726#18930
TOTALS30371583+1454
📊

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