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BOSTON MARATHON 2023

Zalak Shah

Bib: 27370•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ 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
11:03/mi
34:20
↑ 97↓ 3451.5%
10K· 6.21 mi
12:13/mi
1:12:17
↑ 79↓ 1380.4%
15K· 9.32 mi
12:39/mi
1:51:34
↑ 67↓ 78
20K· 12.43 mi
13:43/mi
2:34:11
↑ 106↓ 860.1%
Half· 13.11 mi
14:00/mi
2:43:44
↑ 19↓ 370.5%
25K· 15.53 mi
14:42/mi
3:19:22
↑ 66↓ 880.2%
30K· 18.64 mi
14:54/mi
4:05:38
↑ 181↓ 1480.2%
20M
14:41/mi
4:25:35
↑ 64↓ 500.2%
21M
15:54/mi
4:41:29
↑ 106↓ 241.6%
35K· 21.75 mi
14:15/mi
4:52:09
↑ 17↓ 861.7%
23M
15:18/mi
5:11:18
↑ 23↓ 630.6%
24M
14:30/mi
5:25:48
↓ 821.3%
40K· 24.85 mi
15:12/mi
5:38:48
↓ 200.3%
25.2M
16:03/mi
5:44:20
↑ 13↓ 160.2%
Finish· 26.22 mi
13:22/mi
5:57:57
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:43:44
Pace12:29 /mi
2nd Half
Distance13.11 mi
Time3:14:13
Pace14:49 /mi
📊Positive Split: 18.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:1534:2011:0334:20
11:03
-
10K
6.21 mi12:29:121:12:1711:3837:57
12:13
+1:10
15K
9.32 mi13:08:291:51:3411:5839:17
12:39
+0:26
20K
12.43 mi13:51:062:34:1112:2442:37
13:43
+1:04
Half
13.11 mi14:00:392:43:4412:299:33
14:00
+0:17
25K
15.53 mi14:36:173:19:2212:5035:38
14:42
+0:42
30K
18.64 mi15:22:334:05:3813:1146:16
14:54
+0:12
20M
20.00 mi15:42:304:25:3513:1719:57
14:41
-0:13
21M
21.00 mi15:58:244:41:2913:2415:54
15:54
+1:13
35K
21.75 mi16:09:044:52:0913:2610:40
14:15
-1:39
23M
23.00 mi16:28:135:11:1813:3219:09
15:18
+1:03
24M
24.00 mi16:42:435:25:4813:3514:30
14:30
-0:48
40K
24.85 mi16:55:435:38:4813:3813:00
15:12
+0:42
25.2M
25.20 mi17:01:155:44:2013:405:32
16:03
+0:51
Finish
26.22 mi17:14:525:57:5713:4013:37
13:22
-2:41

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

11:03 /mi

Average Pace

13:40 /mi

Slowest Pace

16:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47:48

47% of race

Time at Steady Pace

2:16:34

38% of race

Time at Slower Pace

53:35

15% of race

Average Pace: 13:39 /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 mi11:51:1534:2011:0334:20
11:03
#25751
10K
6.21 mi12:29:121:12:1711:3837:57
12:13
#26189
15K
9.32 mi13:08:291:51:3411:5839:17
12:39
#26279
20K
12.43 mi13:51:062:34:1112:2442:37
13:43
#26362
Half
13.11 mi14:00:392:43:4412:299:33
14:00
#26390
25K
15.53 mi14:36:173:19:2212:5035:38
14:42
#26447
30K
18.64 mi15:22:334:05:3813:1146:16
14:54
#26466
20M
20.00 mi15:42:304:25:3513:1719:57
14:41
#26468
21M
21.00 mi15:58:244:41:2913:2415:54
15:54
#26470
35K
21.75 mi16:09:044:52:0913:2610:40
14:15
#26474
23M
23.00 mi16:28:135:11:1813:3219:09
15:18
#26488
24M
24.00 mi16:42:435:25:4813:3514:30
14:30
#26486
40K
24.85 mi16:55:435:38:4813:3813:00
15:12
#26488
25.2M
25.20 mi17:01:155:44:2013:405:32
16:03
#26485
Finish
26.22 mi17:14:525:57:5713:4013:37
13:22
#26482
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi25751148411484126384(Top 99%)15076(Top 99%)15076(Top 285%)
10K6.21 mi3.10 mi26189-43815010-16915010-16926381(Top 99%)15074(Top 99%)15074(Top 285%)
15K9.32 mi3.11 mi26279-9015038-2815038-2826384(Top 99%)15076(Top 99%)15076(Top 285%)
20K12.43 mi3.11 mi26362-8315075-3715075-3726477(Top 99%)15119(Top 100%)15119(Top 286%)
Half13.11 mi0.68 mi26390-2815083-815083-826535(Top 100%)15133(Top 100%)15133(Top 286%)
25K15.53 mi2.42 mi26447-5715101-1815101-1826507(Top 100%)15126(Top 100%)15126(Top 286%)
30K18.64 mi3.11 mi26466-1915112-1115112-1126388(Top 99%)15059(Top 99%)15059(Top 285%)
20M20.00 mi1.36 mi26468-215109+315109+326180(Top 98%)14942(Top 98%)14942(Top 283%)
21M21.00 mi1.00 mi26470-215112-315112-326191(Top 98%)14951(Top 99%)14951(Top 283%)
35K21.75 mi0.75 mi26474-415113-115113-126216(Top 98%)14961(Top 99%)14961(Top 283%)
23M23.00 mi1.25 mi26488-1415115-215115-226360(Top 99%)15027(Top 99%)15027(Top 284%)
24M24.00 mi1.00 mi26486+215116-115116-126261(Top 99%)14958(Top 99%)14958(Top 283%)
40K24.85 mi0.85 mi26488-215114+215114+226232(Top 99%)14933(Top 98%)14933(Top 283%)
25.2M25.20 mi0.35 mi26485+315113+115113+126131(Top 98%)14885(Top 98%)14885(Top 282%)
Finish26.22 mi1.02 mi26482+315109+415109+426137(Top 98%)14877(Top 98%)14877(Top 281%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 99%
×21story building
+97ft-345ft

Overall

26384

Males

15076

M18-39

15076

5K→10K

3.1 - 6.2 mi

Top 99%
×5story building
+79ft-138ft

Overall

26381

Males

15074

M18-39

15074

10K→15K

6.2 - 9.3 mi

Top 99%
×3story building
+67ft-78ft

Overall

26384

Males

15076

M18-39

15076

15K→20K

9.3 - 12.4 mi

Top 99%
×5story building
+106ft-86ft

Overall

26477

Males

15119

M18-39

15119

20K→Half

12.4 - 13.1 mi

Top 100%
×2story building
+19ft-37ft

Overall

26535

Males

15133

M18-39

15133

Half→25K

13.1 - 15.5 mi

Top 100%
×4story building
+66ft-88ft

Overall

26507

Males

15126

M18-39

15126

25K→30K

15.5 - 18.6 mi

Top 99%
×9story building
+181ft-148ft

Overall

26388

Males

15059

M18-39

15059

30K→20M

18.6 - 20.0 mi

Top 98%
×5story building
+64ft-50ft

Overall

26180

Males

14942

M18-39

14942

20M→21M

20.0 - 21.0 mi

Top 98%
×8story building
+106ft-24ft

Overall

26191

Males

14951

M18-39

14951

21M→35K

21.0 - 21.8 mi

Top 98%
×7story building
+17ft-86ft

Overall

26216

Males

14961

M18-39

14961

35K→23M

21.8 - 23.0 mi

Top 99%
×5story building
+23ft-63ft

Overall

26360

Males

15027

M18-39

15027

23M→24M

23.0 - 24.0 mi

Top 99%
×6story building
+12ft-82ft

Overall

26261

Males

14958

M18-39

14958

24M→40K

24.0 - 24.9 mi

Top 99%
×1story
+6ft-20ft

Overall

26232

Males

14933

M18-39

14933

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1story
+13ft-16ft

Overall

26131

Males

14885

M18-39

14885

25.2M→Finish

25.2 - 26.2 mi

Top 98%
×2story building
+22ft-21ft

Overall

26137

Males

14877

M18-39

14877

Passing Analysis

Category:
Athletes Passed
107
Passed By
838
Net Change
-731
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25751
5K → 10K2440-438#25751#26189
10K → 15K19109-90#26189#26279
15K → 20K17100-83#26279#26362
20K → Half129-28#26362#26390
Half → 25K663-57#26390#26447
25K → 30K1332-19#26447#26466
30K → 20M911-2#26466#26468
20M → 21M68-2#26468#26470
21M → 35K59-4#26470#26474
35K → 23M418-14#26474#26488
23M → 24M86+2#26488#26486
24M → 40K79-2#26486#26488
40K → 25.2M30+3#26488#26485
25.2M → Finish74+3#26485#26482
TOTALS107838-731
📊

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