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BOSTON MARATHON 2025

Samim Syed

Bib: 26381•M

CO

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
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
8:45/mi
27:12
↑ 97↓ 3451.5%
10K· 6.21 mi
9:22/mi
56:17
↑ 79↓ 1380.4%
15K· 9.32 mi
10:15/mi
1:28:08
↑ 67↓ 78
20K· 12.43 mi
14:03/mi
2:11:46
↑ 106↓ 860.1%
Half· 13.11 mi
13:04/mi
2:20:41
↑ 19↓ 370.5%
25K· 15.53 mi
20:22/mi
3:10:03
↑ 66↓ 880.2%
30K· 18.64 mi
14:20/mi
3:54:35
↑ 181↓ 1480.2%
20M
14:22/mi
4:14:06
↑ 64↓ 500.2%
21M
17:43/mi
4:31:49
↑ 106↓ 241.6%
35K· 21.75 mi
13:17/mi
4:41:45
↑ 17↓ 861.7%
23M
18:47/mi
5:05:16
↑ 23↓ 630.6%
24M
13:08/mi
5:18:24
↓ 821.3%
40K· 24.85 mi
13:39/mi
5:30:04
↓ 200.3%
25.2M
15:42/mi
5:35:29
↑ 13↓ 160.2%
Finish· 26.22 mi
16:41/mi
5:52:29
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:20:41
Pace10:44 /mi
2nd Half
Distance13.11 mi
Time3:31:48
Pace16:09 /mi
📊Positive Split: 50.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:42:1527:128:4527:12
8:45
-
10K
6.21 mi12:11:2056:179:0329:05
9:22
+0:37
15K
9.32 mi12:43:111:28:089:2731:51
10:15
+0:53
20K
12.43 mi13:26:492:11:4610:3643:38
14:03
+3:48
Half
13.11 mi13:35:442:20:4110:448:55
13:04
-0:59
25K
15.53 mi14:25:063:10:0312:1449:22
20:22
+7:18
30K
18.64 mi15:09:383:54:3512:3544:32
14:20
-6:02
20M
20.00 mi15:29:094:14:0612:4219:31
14:22
+0:02
21M
21.00 mi15:46:524:31:4912:5717:43
17:43
+3:21
35K
21.75 mi15:56:484:41:4512:579:56
13:17
-4:26
23M
23.00 mi16:20:195:05:1613:1623:31
18:47
+5:30
24M
24.00 mi16:33:275:18:2413:1613:08
13:08
-5:39
40K
24.85 mi16:45:075:30:0413:1711:40
13:39
+0:31
25.2M
25.20 mi16:50:325:35:2913:195:25
15:42
+2:03
Finish
26.22 mi17:07:325:52:2913:2717:00
16:41
+0:59

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

8:45 /mi

Average Pace

13:27 /mi

Slowest Pace

20:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:28:08

25% of race

Time at Steady Pace

2:31:20

43% of race

Time at Slower Pace

1:53:01

32% of race

Average Pace: 13:27 /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 mi11:42:1527:128:4527:12
8:45
#21275
10K
6.21 mi12:11:2056:179:0329:05
9:22
#22658
15K
9.32 mi12:43:111:28:089:2731:51
10:15
#23918
20K
12.43 mi13:26:492:11:4610:3643:38
14:03
#26166
Half
13.11 mi13:35:442:20:4110:448:55
13:04
#26365
25K
15.53 mi14:25:063:10:0312:1449:22
20:22
#27784
30K
18.64 mi15:09:383:54:3512:3544:32
14:20
#27792
20M
20.00 mi15:29:094:14:0612:4219:31
14:22
#27783
21M
21.00 mi15:46:524:31:4912:5717:43
17:43
#27871
35K
21.75 mi15:56:484:41:4512:579:56
13:17
#27854
23M
23.00 mi16:20:195:05:1613:1623:31
18:47
#28026
24M
24.00 mi16:33:275:18:2413:1613:08
13:08
#28008
40K
24.85 mi16:45:075:30:0413:1711:40
13:39
#27987
25.2M
25.20 mi16:50:325:35:2913:195:25
15:42
#27981
Finish
26.22 mi17:07:325:52:2913:2717:00
16:41
#28065
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi21275129871298725513(Top 90%)14940(Top 93%)14940(Top 265%)
10K6.21 mi3.10 mi22658-138313633-64613633-64623726(Top 84%)14135(Top 88%)14135(Top 251%)
15K9.32 mi3.11 mi23918-126014228-59514228-59525513(Top 90%)14940(Top 93%)14940(Top 265%)
20K12.43 mi3.11 mi26166-224815231-100315231-100328257(Top 99%)16029(Top 100%)16029(Top 284%)
Half13.11 mi0.68 mi26365-19915311-8015311-8028038(Top 99%)15937(Top 99%)15937(Top 282%)
25K15.53 mi2.42 mi27784-141915866-55515866-55528398(Top 100%)16103(Top 100%)16103(Top 285%)
30K18.64 mi3.11 mi27792-815861+515861+527729(Top 98%)15753(Top 98%)15753(Top 279%)
20M20.00 mi1.36 mi27783+915847+1415847+1427555(Top 97%)15638(Top 97%)15638(Top 277%)
21M21.00 mi1.00 mi27871-8815877-3015877-3028256(Top 99%)16018(Top 99%)16018(Top 284%)
35K21.75 mi0.75 mi27854+1715863+1415863+1427196(Top 96%)15439(Top 96%)15439(Top 274%)
23M23.00 mi1.25 mi28026-17215940-7715940-7728353(Top 100%)16066(Top 100%)16066(Top 285%)
24M24.00 mi1.00 mi28008+1815927+1315927+1326999(Top 95%)15300(Top 95%)15300(Top 271%)
40K24.85 mi0.85 mi27987+2115912+1515912+1526896(Top 95%)15236(Top 95%)15236(Top 270%)
25.2M25.20 mi0.35 mi27981+615908+415908+427574(Top 97%)15586(Top 97%)15586(Top 276%)
Finish26.22 mi1.02 mi28065-8415938-3015938-3028344(Top 100%)16063(Top 100%)16063(Top 285%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21story building
+97ft-345ft

Overall

25513

Males

14940

M18-39

14940

5K→10K

3.1 - 6.2 mi

Top 84%
×5story building
+79ft-138ft

Overall

23726

Males

14135

M18-39

14135

10K→15K

6.2 - 9.3 mi

Top 90%
×3story building
+67ft-78ft

Overall

25513

Males

14940

M18-39

14940

15K→20K

9.3 - 12.4 mi

Top 99%
×5story building
+106ft-86ft

Overall

28257

Males

16029

M18-39

16029

20K→Half

12.4 - 13.1 mi

Top 99%
×2story building
+19ft-37ft

Overall

28038

Males

15937

M18-39

15937

Half→25K

13.1 - 15.5 mi

Top 100%
×4story building
+66ft-88ft

Overall

28398

Males

16103

M18-39

16103

25K→30K

15.5 - 18.6 mi

Top 98%
×9story building
+181ft-148ft

Overall

27729

Males

15753

M18-39

15753

30K→20M

18.6 - 20.0 mi

Top 97%
×5story building
+64ft-50ft

Overall

27555

Males

15638

M18-39

15638

20M→21M

20.0 - 21.0 mi

Top 99%
×8story building
+106ft-24ft

Overall

28256

Males

16018

M18-39

16018

21M→35K

21.0 - 21.8 mi

Top 96%
×7story building
+17ft-86ft

Overall

27196

Males

15439

M18-39

15439

35K→23M

21.8 - 23.0 mi

Top 100%
×5story building
+23ft-63ft

Overall

28353

Males

16066

M18-39

16066

23M→24M

23.0 - 24.0 mi

Top 95%
×6story building
+12ft-82ft

Overall

26999

Males

15300

M18-39

15300

24M→40K

24.0 - 24.9 mi

Top 95%
×1story
+6ft-20ft

Overall

26896

Males

15236

M18-39

15236

40K→25.2M

24.9 - 25.2 mi

Top 97%
×1story
+13ft-16ft

Overall

27574

Males

15586

M18-39

15586

25.2M→Finish

25.2 - 26.2 mi

Top 100%
×2story building
+22ft-21ft

Overall

28344

Males

16063

M18-39

16063

Passing Analysis

Category:
Athletes Passed
215
Passed By
7005
Net Change
-6790
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21275
5K → 10K231406-1383#21275#22658
10K → 15K191279-1260#22658#23918
15K → 20K32251-2248#23918#26166
20K → Half1200-199#26166#26365
Half → 25K01419-1419#26365#27784
25K → 30K4755-8#27784#27792
30K → 20M3526+9#27792#27783
20M → 21M492-88#27783#27871
21M → 35K247+17#27871#27854
35K → 23M1173-172#27854#28026
23M → 24M224+18#28026#28008
24M → 40K254+21#28008#27987
40K → 25.2M93+6#27987#27981
25.2M → Finish286-84#27981#28065
TOTALS2157005-6790
📊

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