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BOSTON MARATHON 2025

Shahab Uddin

Bib: 29045•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
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
7:58/mi
24:44
↑ 97↓ 3451.5%
10K· 6.21 mi
7:50/mi
49:05
↑ 79↓ 1380.4%
15K· 9.32 mi
7:55/mi
1:13:42
↑ 67↓ 78
20K· 12.43 mi
8:01/mi
1:38:37
↑ 106↓ 860.1%
Half· 13.11 mi
7:56/mi
1:44:02
↑ 19↓ 370.5%
25K· 15.53 mi
8:09/mi
2:03:48
↑ 66↓ 880.2%
30K· 18.64 mi
8:38/mi
2:30:37
↑ 181↓ 1480.2%
20M
9:18/mi
2:43:15
↑ 64↓ 500.2%
21M
10:35/mi
2:53:50
↑ 106↓ 241.6%
35K· 21.75 mi
10:32/mi
3:01:43
↑ 17↓ 861.7%
23M
10:14/mi
3:14:32
↑ 23↓ 630.6%
24M
10:14/mi
3:24:46
↓ 821.3%
40K· 24.85 mi
11:59/mi
3:35:01
↓ 200.3%
25.2M
11:39/mi
3:39:02
↑ 13↓ 160.2%
Finish· 26.22 mi
9:59/mi
3:49:12
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:02
Pace7:56 /mi
2nd Half
Distance13.11 mi
Time2:05:10
Pace9:33 /mi
📊Positive Split: 20.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:5224:447:5824:44
7:58
-
10K
6.21 mi12:08:1349:057:5424:21
7:50
-0:08
15K
9.32 mi12:32:501:13:427:5424:37
7:55
+0:05
20K
12.43 mi12:57:451:38:377:5624:55
8:01
+0:06
Half
13.11 mi13:03:101:44:027:565:25
7:56
-0:05
25K
15.53 mi13:22:562:03:487:5819:46
8:09
+0:13
30K
18.64 mi13:49:452:30:378:0526:49
8:38
+0:29
20M
20.00 mi14:02:232:43:158:1012:38
9:18
+0:40
21M
21.00 mi14:12:582:53:508:1710:35
10:35
+1:17
35K
21.75 mi14:20:513:01:438:217:53
10:32
-0:03
23M
23.00 mi14:33:403:14:328:2712:49
10:14
-0:18
24M
24.00 mi14:43:543:24:468:3210:14
10:14
0:00
40K
24.85 mi14:54:093:35:018:3910:15
11:59
+1:45
25.2M
25.20 mi14:58:103:39:028:424:01
11:39
-0:20
Finish
26.22 mi15:08:203:49:128:4510:10
9:59
-1:40

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

7:50 /mi

Average Pace

8:45 /mi

Slowest Pace

11:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03:48

54% of race

Time at Steady Pace

49:37

22% of race

Time at Slower Pace

55:47

24% of race

Average Pace: 8:44 /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 mi11:43:5224:447:5824:44
7:58
#16283
10K
6.21 mi12:08:1349:057:5424:21
7:50
#15658
15K
9.32 mi12:32:501:13:427:5424:37
7:55
#15553
20K
12.43 mi12:57:451:38:377:5624:55
8:01
#15409
Half
13.11 mi13:03:101:44:027:565:25
7:56
#15399
25K
15.53 mi13:22:562:03:487:5819:46
8:09
#15325
30K
18.64 mi13:49:452:30:378:0526:49
8:38
#15369
20M
20.00 mi14:02:232:43:158:1012:38
9:18
#15572
21M
21.00 mi14:12:582:53:508:1710:35
10:35
#15935
35K
21.75 mi14:20:513:01:438:217:53
10:32
#16317
23M
23.00 mi14:33:403:14:328:2712:49
10:14
#16737
24M
24.00 mi14:43:543:24:468:3210:14
10:14
#17113
40K
24.85 mi14:54:093:35:018:3910:15
11:59
#17706
25.2M
25.20 mi14:58:103:39:028:424:01
11:39
#17837
Finish
26.22 mi15:08:203:49:128:4510:10
9:59
#18132
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi16283109171091715415(Top 54%)10557(Top 66%)10557(Top 442%)
10K6.21 mi3.10 mi15658+62510683+23410683+23415151(Top 53%)10480(Top 65%)10480(Top 439%)
15K9.32 mi3.11 mi15553+10510634+4910634+4915415(Top 54%)10557(Top 66%)10557(Top 442%)
20K12.43 mi3.11 mi15409+14410553+8110553+8115077(Top 53%)10354(Top 64%)10354(Top 434%)
Half13.11 mi0.68 mi15399+1010548+510548+515409(Top 54%)10546(Top 65%)10546(Top 442%)
25K15.53 mi2.42 mi15325+7410493+5510493+5514989(Top 53%)10222(Top 63%)10222(Top 428%)
30K18.64 mi3.11 mi15369-4410456+3710456+3715571(Top 55%)10318(Top 64%)10318(Top 432%)
20M20.00 mi1.36 mi15572-20310513-5710513-5718266(Top 64%)11345(Top 70%)11345(Top 475%)
21M21.00 mi1.00 mi15935-36310624-11110624-11120251(Top 71%)12148(Top 75%)12148(Top 509%)
35K21.75 mi0.75 mi16317-38210776-15210776-15223242(Top 82%)13502(Top 84%)13502(Top 566%)
23M23.00 mi1.25 mi16737-42010919-14310919-14321231(Top 75%)12502(Top 78%)12502(Top 524%)
24M24.00 mi1.00 mi17113-37611048-12911048-12922014(Top 78%)12811(Top 80%)12811(Top 537%)
40K24.85 mi0.85 mi17706-59311268-22011268-22024897(Top 88%)14206(Top 88%)14206(Top 595%)
25.2M25.20 mi0.35 mi17837-13111322-5411322-5422402(Top 79%)12980(Top 81%)12980(Top 544%)
Finish26.22 mi1.02 mi18132-29511442-12011442-12022841(Top 80%)13189(Top 82%)13189(Top 553%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21story building
+97ft-345ft

Overall

15415

Males

10557

M45-49

10557

5K→10K

3.1 - 6.2 mi

Top 53%
×5story building
+79ft-138ft

Overall

15151

Males

10480

M45-49

10480

10K→15K

6.2 - 9.3 mi

Top 54%
×3story building
+67ft-78ft

Overall

15415

Males

10557

M45-49

10557

15K→20K

9.3 - 12.4 mi

Top 53%
×5story building
+106ft-86ft

Overall

15077

Males

10354

M45-49

10354

20K→Half

12.4 - 13.1 mi

Top 54%
×2story building
+19ft-37ft

Overall

15409

Males

10546

M45-49

10546

Half→25K

13.1 - 15.5 mi

Top 53%
×4story building
+66ft-88ft

Overall

14989

Males

10222

M45-49

10222

25K→30K

15.5 - 18.6 mi

Top 55%
×9story building
+181ft-148ft

Overall

15571

Males

10318

M45-49

10318

30K→20M

18.6 - 20.0 mi

Top 64%
×5story building
+64ft-50ft

Overall

18266

Males

11345

M45-49

11345

20M→21M

20.0 - 21.0 mi

Top 71%
×8story building
+106ft-24ft

Overall

20251

Males

12148

M45-49

12148

21M→35K

21.0 - 21.8 mi

Top 82%
×7story building
+17ft-86ft

Overall

23242

Males

13502

M45-49

13502

35K→23M

21.8 - 23.0 mi

Top 75%
×5story building
+23ft-63ft

Overall

21231

Males

12502

M45-49

12502

23M→24M

23.0 - 24.0 mi

Top 78%
×6story building
+12ft-82ft

Overall

22014

Males

12811

M45-49

12811

24M→40K

24.0 - 24.9 mi

Top 88%
×1story
+6ft-20ft

Overall

24897

Males

14206

M45-49

14206

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

22402

Males

12980

M45-49

12980

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2story building
+22ft-21ft

Overall

22841

Males

13189

M45-49

13189

Passing Analysis

Category:
Athletes Passed
1922
Passed By
3771
Net Change
-1849
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16283
5K → 10K71994+625#16283#15658
10K → 15K256151+105#15658#15553
15K → 20K273129+144#15553#15409
20K → Half4030+10#15409#15399
Half → 25K204130+74#15399#15325
25K → 30K229273-44#15325#15369
30K → 20M71274-203#15369#15572
20M → 21M41404-363#15572#15935
21M → 35K10392-382#15935#16317
35K → 23M32452-420#16317#16737
23M → 24M20396-376#16737#17113
24M → 40K5598-593#17113#17706
40K → 25.2M7138-131#17706#17837
25.2M → Finish15310-295#17837#18132
TOTALS19223771-1849
📊

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