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BOSTON MARATHON 2025

Hugo Louw

Bib: 31169•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M50-54)
#0 / 1996
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
11:27/mi
35:35
↑ 97↓ 3451.5%
10K· 6.21 mi
11:36/mi
1:11:37
↑ 79↓ 1380.4%
15K· 9.32 mi
11:47/mi
1:48:13
↑ 67↓ 78
20K· 12.43 mi
11:58/mi
2:25:25
↑ 106↓ 860.1%
Half· 13.11 mi
11:16/mi
2:33:06
↑ 19↓ 370.5%
25K· 15.53 mi
12:22/mi
3:03:06
↑ 66↓ 880.2%
30K· 18.64 mi
12:43/mi
3:42:35
↑ 181↓ 1480.2%
20M
14:58/mi
4:02:56
↑ 64↓ 500.2%
21M
14:35/mi
4:17:31
↑ 106↓ 241.6%
35K· 21.75 mi
11:47/mi
4:26:20
↑ 17↓ 861.7%
23M
12:13/mi
4:41:38
↑ 23↓ 630.6%
24M
10:55/mi
4:52:33
↓ 821.3%
40K· 24.85 mi
12:16/mi
5:03:02
↓ 200.3%
25.2M
13:46/mi
5:07:47
↑ 13↓ 160.2%
Finish· 26.22 mi
11:44/mi
5:19:44
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:33:06
Pace11:41 /mi
2nd Half
Distance13.11 mi
Time2:46:38
Pace12:43 /mi
📊Positive Split: 8.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi12:00:1435:3511:2735:35
11:27
-
10K
6.21 mi12:36:161:11:3711:3236:02
11:36
+0:09
15K
9.32 mi13:12:521:48:1311:3736:36
11:47
+0:11
20K
12.43 mi13:50:042:25:2511:4237:12
11:58
+0:11
Half
13.11 mi13:57:452:33:0611:417:41
11:16
-0:42
25K
15.53 mi14:27:453:03:0611:4730:00
12:22
+1:06
30K
18.64 mi15:07:143:42:3511:5639:29
12:43
+0:21
20M
20.00 mi15:27:354:02:5612:0920:21
14:58
+2:15
21M
21.00 mi15:42:104:17:3112:1614:35
14:35
-0:23
35K
21.75 mi15:50:594:26:2012:158:49
11:47
-2:48
23M
23.00 mi16:06:174:41:3812:1515:18
12:13
+0:26
24M
24.00 mi16:17:124:52:3312:1110:55
10:55
-1:18
40K
24.85 mi16:27:415:03:0212:1210:29
12:16
+1:21
25.2M
25.20 mi16:32:265:07:4712:134:45
13:46
+1:30
Finish
26.22 mi16:44:235:19:4412:1211:57
11:44
-2:02

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

10:55 /mi

Average Pace

12:12 /mi

Slowest Pace

14:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

18:36

6% of race

Time at Steady Pace

3:41:58

69% of race

Time at Slower Pace

1:19:10

25% of race

Average Pace: 12:12 /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 mi12:00:1435:3511:2735:35
11:27
#27978
10K
6.21 mi12:36:161:11:3711:3236:02
11:36
#27840
15K
9.32 mi13:12:521:48:1311:3736:36
11:47
#27730
20K
12.43 mi13:50:042:25:2511:4237:12
11:58
#27573
Half
13.11 mi13:57:452:33:0611:417:41
11:16
#27542
25K
15.53 mi14:27:453:03:0611:4730:00
12:22
#27402
30K
18.64 mi15:07:143:42:3511:5639:29
12:43
#27238
20M
20.00 mi15:27:354:02:5612:0920:21
14:58
#27323
21M
21.00 mi15:42:104:17:3112:1614:35
14:35
#27320
35K
21.75 mi15:50:594:26:2012:158:49
11:47
#27276
23M
23.00 mi16:06:174:41:3812:1515:18
12:13
#27196
24M
24.00 mi16:17:124:52:3312:1110:55
10:55
#27119
40K
24.85 mi16:27:415:03:0212:1210:29
12:16
#27074
25.2M
25.20 mi16:32:265:07:4712:134:45
13:46
#27059
Finish
26.22 mi16:44:235:19:4412:1211:57
11:44
#27049
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi27978159581595827475(Top 97%)15740(Top 98%)15740(Top 789%)
10K6.21 mi3.10 mi27840+13815915+4315915+4327685(Top 97%)15840(Top 98%)15840(Top 794%)
15K9.32 mi3.11 mi27730+11015858+5715858+5727475(Top 97%)15740(Top 98%)15740(Top 789%)
20K12.43 mi3.11 mi27573+15715791+6715791+6727096(Top 95%)15574(Top 97%)15574(Top 780%)
Half13.11 mi0.68 mi27542+3115779+1215779+1226834(Top 94%)15448(Top 96%)15448(Top 774%)
25K15.53 mi2.42 mi27402+14015715+6415715+6426816(Top 94%)15424(Top 96%)15424(Top 773%)
30K18.64 mi3.11 mi27238+16415626+8915626+8926387(Top 93%)15155(Top 94%)15155(Top 759%)
20M20.00 mi1.36 mi27323-8515654-2815654-2827859(Top 98%)15802(Top 98%)15802(Top 792%)
21M21.00 mi1.00 mi27320+315646+815646+826798(Top 94%)15262(Top 95%)15262(Top 765%)
35K21.75 mi0.75 mi27276+4415621+2515621+2525556(Top 90%)14617(Top 91%)14617(Top 732%)
23M23.00 mi1.25 mi27196+8015582+3915582+3925432(Top 90%)14544(Top 90%)14544(Top 729%)
24M24.00 mi1.00 mi27119+7715545+3715545+3723819(Top 84%)13733(Top 85%)13733(Top 688%)
40K24.85 mi0.85 mi27074+4515521+2415521+2425335(Top 89%)14438(Top 90%)14438(Top 723%)
25.2M25.20 mi0.35 mi27059+1515511+1015511+1026036(Top 92%)14770(Top 92%)14770(Top 740%)
Finish26.22 mi1.02 mi27049+1015501+1015501+1026456(Top 93%)15024(Top 93%)15024(Top 753%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 97%
×21story building
+97ft-345ft

Overall

27475

Males

15740

M50-54

15740

5K→10K

3.1 - 6.2 mi

Top 97%
×5story building
+79ft-138ft

Overall

27685

Males

15840

M50-54

15840

10K→15K

6.2 - 9.3 mi

Top 97%
×3story building
+67ft-78ft

Overall

27475

Males

15740

M50-54

15740

15K→20K

9.3 - 12.4 mi

Top 95%
×5story building
+106ft-86ft

Overall

27096

Males

15574

M50-54

15574

20K→Half

12.4 - 13.1 mi

Top 94%
×2story building
+19ft-37ft

Overall

26834

Males

15448

M50-54

15448

Half→25K

13.1 - 15.5 mi

Top 94%
×4story building
+66ft-88ft

Overall

26816

Males

15424

M50-54

15424

25K→30K

15.5 - 18.6 mi

Top 93%
×9story building
+181ft-148ft

Overall

26387

Males

15155

M50-54

15155

30K→20M

18.6 - 20.0 mi

Top 98%
×5story building
+64ft-50ft

Overall

27859

Males

15802

M50-54

15802

20M→21M

20.0 - 21.0 mi

Top 94%
×8story building
+106ft-24ft

Overall

26798

Males

15262

M50-54

15262

21M→35K

21.0 - 21.8 mi

Top 90%
×7story building
+17ft-86ft

Overall

25556

Males

14617

M50-54

14617

35K→23M

21.8 - 23.0 mi

Top 90%
×5story building
+23ft-63ft

Overall

25432

Males

14544

M50-54

14544

23M→24M

23.0 - 24.0 mi

Top 84%
×6story building
+12ft-82ft

Overall

23819

Males

13733

M50-54

13733

24M→40K

24.0 - 24.9 mi

Top 89%
×1story
+6ft-20ft

Overall

25335

Males

14438

M50-54

14438

40K→25.2M

24.9 - 25.2 mi

Top 92%
×1story
+13ft-16ft

Overall

26036

Males

14770

M50-54

14770

25.2M→Finish

25.2 - 26.2 mi

Top 93%
×2story building
+22ft-21ft

Overall

26456

Males

15024

M50-54

15024

Passing Analysis

Category:
Athletes Passed
1170
Passed By
241
Net Change
+929
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27978
5K → 10K16022+138#27978#27840
10K → 15K14535+110#27840#27730
15K → 20K17215+157#27730#27573
20K → Half343+31#27573#27542
Half → 25K1488+140#27542#27402
25K → 30K17814+164#27402#27238
30K → 20M691-85#27238#27323
20M → 21M2623+3#27323#27320
21M → 35K484+44#27320#27276
35K → 23M811+80#27276#27196
23M → 24M803+77#27196#27119
24M → 40K505+45#27119#27074
40K → 25.2M205+15#27074#27059
25.2M → Finish2212+10#27059#27049
TOTALS1170241+929
📊

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