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BOSTON MARATHON 2023

Prem Kumar

Bib: 12510•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 40%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 44%
Division (M45-49)
#0 / 2252
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
7:30/mi
23:19
↑ 97↓ 3451.5%
10K· 6.21 mi
7:16/mi
45:53
↑ 79↓ 1380.4%
15K· 9.32 mi
7:23/mi
1:08:49
↑ 67↓ 78
20K· 12.43 mi
7:38/mi
1:32:32
↑ 106↓ 860.1%
Half· 13.11 mi
7:18/mi
1:37:31
↑ 19↓ 370.5%
25K· 15.53 mi
7:50/mi
1:56:30
↑ 66↓ 880.2%
30K· 18.64 mi
8:12/mi
2:21:58
↑ 181↓ 1480.2%
20M
8:16/mi
2:33:12
↑ 64↓ 500.2%
21M
8:43/mi
2:41:55
↑ 106↓ 241.6%
35K· 21.75 mi
7:46/mi
2:47:44
↑ 17↓ 861.7%
23M
8:29/mi
2:58:21
↑ 23↓ 630.6%
24M
7:58/mi
3:06:19
↓ 821.3%
40K· 24.85 mi
8:12/mi
3:13:20
↓ 200.3%
25.2M
8:59/mi
3:16:26
↑ 13↓ 160.2%
Finish· 26.22 mi
8:12/mi
3:24:47
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:37:31
Pace7:26 /mi
2nd Half
Distance13.11 mi
Time1:47:16
Pace8:11 /mi
📊Positive Split: 10.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:3823:197:3023:19
7:30
-
10K
6.21 mi11:13:1245:537:2322:34
7:16
-0:14
15K
9.32 mi11:36:081:08:497:2322:56
7:23
+0:07
20K
12.43 mi11:59:511:32:327:2723:43
7:38
+0:15
Half
13.11 mi12:04:501:37:317:264:59
7:18
-0:20
25K
15.53 mi12:23:491:56:307:3018:59
7:50
+0:32
30K
18.64 mi12:49:172:21:587:3725:28
8:12
+0:22
20M
20.00 mi13:00:312:33:127:4011:14
8:16
+0:04
21M
21.00 mi13:09:142:41:557:438:43
8:43
+0:27
35K
21.75 mi13:15:032:47:447:435:49
7:46
-0:57
23M
23.00 mi13:25:402:58:217:4510:37
8:29
+0:43
24M
24.00 mi13:33:383:06:197:467:58
7:58
-0:31
40K
24.85 mi13:40:393:13:207:477:01
8:12
+0:14
25.2M
25.20 mi13:43:453:16:267:483:06
8:59
+0:47
Finish
26.22 mi13:52:063:24:477:498:21
8:12
-0:47

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

7:16 /mi

Average Pace

7:49 /mi

Slowest Pace

8:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:37:31

48% of race

Time at Steady Pace

1:13:36

36% of race

Time at Slower Pace

33:40

16% of race

Average Pace: 7:49 /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 mi10:50:3823:197:3023:19
7:30
#9669
10K
6.21 mi11:13:1245:537:2322:34
7:16
#9062
15K
9.32 mi11:36:081:08:497:2322:56
7:23
#9062
20K
12.43 mi11:59:511:32:327:2723:43
7:38
#9377
Half
13.11 mi12:04:501:37:317:264:59
7:18
#9336
25K
15.53 mi12:23:491:56:307:3018:59
7:50
#9644
30K
18.64 mi12:49:172:21:587:3725:28
8:12
#10097
20M
20.00 mi13:00:312:33:127:4011:14
8:16
#10238
21M
21.00 mi13:09:142:41:557:438:43
8:43
#10307
35K
21.75 mi13:15:032:47:447:435:49
7:46
#10298
23M
23.00 mi13:25:402:58:217:4510:37
8:29
#10431
24M
24.00 mi13:33:383:06:197:467:58
7:58
#10449
40K
24.85 mi13:40:393:13:207:477:01
8:12
#10469
25.2M
25.20 mi13:43:453:16:267:483:06
8:59
#10493
Finish
26.22 mi13:52:063:24:477:498:21
8:12
#10585
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi9669796879689186(Top 35%)7660(Top 50%)7660(Top 340%)
10K6.21 mi3.10 mi9062+6077609+3597609+3598577(Top 32%)7316(Top 48%)7316(Top 325%)
15K9.32 mi3.11 mi90627600+97600+99186(Top 35%)7660(Top 50%)7660(Top 340%)
20K12.43 mi3.11 mi9377-3157781-1817781-18110343(Top 39%)8260(Top 54%)8260(Top 367%)
Half13.11 mi0.68 mi9336+417753+287753+288648(Top 32%)7312(Top 48%)7312(Top 325%)
25K15.53 mi2.42 mi9644-3087926-1737926-17311325(Top 43%)8632(Top 57%)8632(Top 383%)
30K18.64 mi3.11 mi10097-4538147-2218147-22112314(Top 46%)8928(Top 59%)8928(Top 396%)
20M20.00 mi1.36 mi10238-1418183-368183-3612109(Top 45%)8746(Top 58%)8746(Top 388%)
21M21.00 mi1.00 mi10307-698192-98192-911734(Top 44%)8450(Top 56%)8450(Top 375%)
35K21.75 mi0.75 mi10298+98172+208172+2010442(Top 39%)7847(Top 52%)7847(Top 348%)
23M23.00 mi1.25 mi10431-1338204-328204-3213061(Top 49%)8933(Top 59%)8933(Top 397%)
24M24.00 mi1.00 mi10449-188179+258179+2510986(Top 41%)7890(Top 52%)7890(Top 350%)
40K24.85 mi0.85 mi10469-208157+228157+2211374(Top 43%)8008(Top 53%)8008(Top 356%)
25.2M25.20 mi0.35 mi10493-248163-68163-612373(Top 46%)8436(Top 56%)8436(Top 375%)
Finish26.22 mi1.02 mi10585-928182-198182-1913362(Top 50%)8947(Top 59%)8947(Top 397%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21story building
+97ft-345ft

Overall

9186

Males

7660

M45-49

7660

5K→10K

3.1 - 6.2 mi

Top 32%
×5story building
+79ft-138ft

Overall

8577

Males

7316

M45-49

7316

10K→15K

6.2 - 9.3 mi

Top 35%
×3story building
+67ft-78ft

Overall

9186

Males

7660

M45-49

7660

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

10343

Males

8260

M45-49

8260

20K→Half

12.4 - 13.1 mi

Top 32%
×2story building
+19ft-37ft

Overall

8648

Males

7312

M45-49

7312

Half→25K

13.1 - 15.5 mi

Top 43%
×4story building
+66ft-88ft

Overall

11325

Males

8632

M45-49

8632

25K→30K

15.5 - 18.6 mi

Top 46%
×9story building
+181ft-148ft

Overall

12314

Males

8928

M45-49

8928

30K→20M

18.6 - 20.0 mi

Top 45%
×5story building
+64ft-50ft

Overall

12109

Males

8746

M45-49

8746

20M→21M

20.0 - 21.0 mi

Top 44%
×8story building
+106ft-24ft

Overall

11734

Males

8450

M45-49

8450

21M→35K

21.0 - 21.8 mi

Top 39%
×7story building
+17ft-86ft

Overall

10442

Males

7847

M45-49

7847

35K→23M

21.8 - 23.0 mi

Top 49%
×5story building
+23ft-63ft

Overall

13061

Males

8933

M45-49

8933

23M→24M

23.0 - 24.0 mi

Top 41%
×6story building
+12ft-82ft

Overall

10986

Males

7890

M45-49

7890

24M→40K

24.0 - 24.9 mi

Top 43%
×1story
+6ft-20ft

Overall

11374

Males

8008

M45-49

8008

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

12373

Males

8436

M45-49

8436

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2story building
+22ft-21ft

Overall

13362

Males

8947

M45-49

8947

Passing Analysis

Category:
Athletes Passed
1464
Passed By
2380
Net Change
-916
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9669
5K → 10K68881+607#9669#9062
10K → 15K1451450#9062#9062
15K → 20K61376-315#9062#9377
20K → Half498+41#9377#9336
Half → 25K53361-308#9336#9644
25K → 30K58511-453#9644#10097
30K → 20M46187-141#10097#10238
20M → 21M66135-69#10238#10307
21M → 35K5142+9#10307#10298
35K → 23M53186-133#10298#10431
23M → 24M5977-18#10431#10449
24M → 40K6484-20#10449#10469
40K → 25.2M2145-24#10469#10493
25.2M → Finish50142-92#10493#10585
TOTALS14642380-916
📊

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