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BOSTON MARATHON 2025

Joel Althoff

Bib: 11111•M

IA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 38%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 40%
Division (M45-49)
#0 / 2386
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
7:21/mi
22:49
↑ 97↓ 3451.5%
10K· 6.21 mi
7:22/mi
45:43
↑ 79↓ 1380.4%
15K· 9.32 mi
7:27/mi
1:08:52
↑ 67↓ 78
20K· 12.43 mi
7:31/mi
1:32:13
↑ 106↓ 860.1%
Half· 13.11 mi
7:27/mi
1:37:18
↑ 19↓ 370.5%
25K· 15.53 mi
7:35/mi
1:55:40
↑ 66↓ 880.2%
30K· 18.64 mi
7:55/mi
2:20:16
↑ 181↓ 1480.2%
20M
8:11/mi
2:31:23
↑ 64↓ 500.2%
21M
8:37/mi
2:40:00
↑ 106↓ 241.6%
35K· 21.75 mi
7:49/mi
2:45:51
↑ 17↓ 861.7%
23M
8:09/mi
2:56:03
↑ 23↓ 630.6%
24M
7:59/mi
3:04:02
↓ 821.3%
40K· 24.85 mi
8:05/mi
3:10:57
↓ 200.3%
25.2M
9:05/mi
3:14:05
↑ 13↓ 160.2%
Finish· 26.22 mi
7:36/mi
3:21:50
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:18
Pace7:25 /mi
2nd Half
Distance13.11 mi
Time1:44:32
Pace7:58 /mi
📊Positive Split: 7.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:4722:497:2122:49
7:21
-
10K
6.21 mi11:12:4145:437:2122:54
7:22
+0:01
15K
9.32 mi11:35:501:08:527:2323:09
7:27
+0:05
20K
12.43 mi11:59:111:32:137:2523:21
7:31
+0:04
Half
13.11 mi12:04:161:37:187:255:05
7:27
-0:04
25K
15.53 mi12:22:381:55:407:2718:22
7:35
+0:08
30K
18.64 mi12:47:142:20:167:3124:36
7:55
+0:20
20M
20.00 mi12:58:212:31:237:3411:07
8:11
+0:16
21M
21.00 mi13:06:582:40:007:378:37
8:37
+0:26
35K
21.75 mi13:12:492:45:517:385:51
7:49
-0:48
23M
23.00 mi13:23:012:56:037:3910:12
8:09
+0:20
24M
24.00 mi13:31:003:04:027:407:59
7:59
-0:10
40K
24.85 mi13:37:553:10:577:416:55
8:05
+0:06
25.2M
25.20 mi13:41:033:14:057:423:08
9:05
+1:00
Finish
26.22 mi13:48:483:21:507:427:45
7:36
-1:29

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

7:21 /mi

Average Pace

7:42 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:37:18

48% of race

Time at Steady Pace

1:04:33

32% of race

Time at Slower Pace

39:59

20% of race

Average Pace: 7:42 /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 mi10:49:4722:497:2122:49
7:21
#10791
10K
6.21 mi11:12:4145:437:2122:54
7:22
#10837
15K
9.32 mi11:35:501:08:527:2323:09
7:27
#10953
20K
12.43 mi11:59:111:32:137:2523:21
7:31
#10930
Half
13.11 mi12:04:161:37:187:255:05
7:27
#10947
25K
15.53 mi12:22:381:55:407:2718:22
7:35
#10852
30K
18.64 mi12:47:142:20:167:3124:36
7:55
#10798
20M
20.00 mi12:58:212:31:237:3411:07
8:11
#10848
21M
21.00 mi13:06:582:40:007:378:37
8:37
#10827
35K
21.75 mi13:12:492:45:517:385:51
7:49
#10814
23M
23.00 mi13:23:012:56:037:3910:12
8:09
#10768
24M
24.00 mi13:31:003:04:027:407:59
7:59
#10756
40K
24.85 mi13:37:553:10:577:416:55
8:05
#10740
25.2M
25.20 mi13:41:033:14:057:423:08
9:05
#10746
Finish
26.22 mi13:48:483:21:507:427:45
7:36
#10672
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi107918582858211326(Top 40%)8749(Top 54%)8749(Top 367%)
10K6.21 mi3.10 mi10837-468579+38579+310909(Top 38%)8616(Top 53%)8616(Top 361%)
15K9.32 mi3.11 mi10953-1168628-498628-4911326(Top 40%)8749(Top 54%)8749(Top 367%)
20K12.43 mi3.11 mi10930+238600+288600+2810878(Top 38%)8439(Top 52%)8439(Top 354%)
Half13.11 mi0.68 mi10947-178601-18601-111250(Top 40%)8661(Top 54%)8661(Top 363%)
25K15.53 mi2.42 mi10852+958513+888513+8810540(Top 37%)8166(Top 51%)8166(Top 342%)
30K18.64 mi3.11 mi10798+548407+1068407+10610773(Top 38%)8070(Top 50%)8070(Top 338%)
20M20.00 mi1.36 mi10848-508388+198388+1911664(Top 41%)8354(Top 52%)8354(Top 350%)
21M21.00 mi1.00 mi10827+218337+518337+5111171(Top 39%)7956(Top 49%)7956(Top 333%)
35K21.75 mi0.75 mi10814+138306+318306+3110942(Top 39%)7825(Top 49%)7825(Top 328%)
23M23.00 mi1.25 mi10768+468246+608246+6011013(Top 39%)7758(Top 48%)7758(Top 325%)
24M24.00 mi1.00 mi10756+128203+438203+4311095(Top 39%)7719(Top 48%)7719(Top 324%)
40K24.85 mi0.85 mi10740+168168+358168+3510762(Top 38%)7440(Top 46%)7440(Top 312%)
25.2M25.20 mi0.35 mi10746-68155+138155+1312203(Top 43%)8087(Top 50%)8087(Top 339%)
Finish26.22 mi1.02 mi10672+748087+688087+689950(Top 35%)6959(Top 43%)6959(Top 292%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21story building
+97ft-345ft

Overall

11326

Males

8749

M45-49

8749

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

10909

Males

8616

M45-49

8616

10K→15K

6.2 - 9.3 mi

Top 40%
×3story building
+67ft-78ft

Overall

11326

Males

8749

M45-49

8749

15K→20K

9.3 - 12.4 mi

Top 38%
×5story building
+106ft-86ft

Overall

10878

Males

8439

M45-49

8439

20K→Half

12.4 - 13.1 mi

Top 40%
×2story building
+19ft-37ft

Overall

11250

Males

8661

M45-49

8661

Half→25K

13.1 - 15.5 mi

Top 37%
×4story building
+66ft-88ft

Overall

10540

Males

8166

M45-49

8166

25K→30K

15.5 - 18.6 mi

Top 38%
×9story building
+181ft-148ft

Overall

10773

Males

8070

M45-49

8070

30K→20M

18.6 - 20.0 mi

Top 41%
×5story building
+64ft-50ft

Overall

11664

Males

8354

M45-49

8354

20M→21M

20.0 - 21.0 mi

Top 39%
×8story building
+106ft-24ft

Overall

11171

Males

7956

M45-49

7956

21M→35K

21.0 - 21.8 mi

Top 39%
×7story building
+17ft-86ft

Overall

10942

Males

7825

M45-49

7825

35K→23M

21.8 - 23.0 mi

Top 39%
×5story building
+23ft-63ft

Overall

11013

Males

7758

M45-49

7758

23M→24M

23.0 - 24.0 mi

Top 39%
×6story building
+12ft-82ft

Overall

11095

Males

7719

M45-49

7719

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10762

Males

7440

M45-49

7440

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

12203

Males

8087

M45-49

8087

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2story building
+22ft-21ft

Overall

9950

Males

6959

M45-49

6959

Passing Analysis

Category:
Athletes Passed
1754
Passed By
1635
Net Change
+119
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10791
5K → 10K231277-46#10791#10837
10K → 15K137253-116#10837#10953
15K → 20K180157+23#10953#10930
20K → Half3047-17#10930#10947
Half → 25K206111+95#10947#10852
25K → 30K264210+54#10852#10798
30K → 20M98148-50#10798#10848
20M → 21M10887+21#10848#10827
21M → 35K6552+13#10827#10814
35K → 23M12983+46#10814#10768
23M → 24M8472+12#10768#10756
24M → 40K7256+16#10756#10740
40K → 25.2M3238-6#10740#10746
25.2M → Finish11844+74#10746#10672
TOTALS17541635+119
📊

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