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BOSTON MARATHON 2023

David Nitkin

Bib: 18854•M

MD

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 47%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Top 39%
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
7:57/mi
24:42
↑ 97↓ 3451.5%
10K· 6.21 mi
7:52/mi
49:07
↑ 79↓ 1380.4%
15K· 9.32 mi
7:59/mi
1:13:56
↑ 67↓ 78
20K· 12.43 mi
7:59/mi
1:38:45
↑ 106↓ 860.1%
Half· 13.11 mi
7:55/mi
1:44:09
↑ 19↓ 370.5%
25K· 15.53 mi
8:03/mi
2:03:41
↑ 66↓ 880.2%
30K· 18.64 mi
8:22/mi
2:29:40
↑ 181↓ 1480.2%
20M
8:22/mi
2:41:02
↑ 64↓ 500.2%
21M
8:39/mi
2:49:41
↑ 106↓ 241.6%
35K· 21.75 mi
8:05/mi
2:55:44
↑ 17↓ 861.7%
23M
8:12/mi
3:06:00
↑ 23↓ 630.6%
24M
7:53/mi
3:13:53
↓ 821.3%
40K· 24.85 mi
7:54/mi
3:20:38
↓ 200.3%
25.2M
8:16/mi
3:23:29
↑ 13↓ 160.2%
Finish· 26.22 mi
7:37/mi
3:31:15
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:09
Pace7:57 /mi
2nd Half
Distance13.11 mi
Time1:47:06
Pace8:10 /mi
📊Positive Split: 2.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:0924:427:5724:42
7:57
-
10K
6.21 mi11:40:3449:077:5424:25
7:52
-0:05
15K
9.32 mi12:05:231:13:567:5624:49
7:59
+0:07
20K
12.43 mi12:30:121:38:457:5724:49
7:59
0:00
Half
13.11 mi12:35:361:44:097:575:24
7:55
-0:04
25K
15.53 mi12:55:082:03:417:5819:32
8:03
+0:08
30K
18.64 mi13:21:072:29:408:0225:59
8:22
+0:19
20M
20.00 mi13:32:292:41:028:0311:22
8:22
0:00
21M
21.00 mi13:41:082:49:418:058:39
8:39
+0:17
35K
21.75 mi13:47:112:55:448:056:03
8:05
-0:34
23M
23.00 mi13:57:273:06:008:0510:16
8:12
+0:07
24M
24.00 mi14:05:203:13:538:057:53
7:53
-0:19
40K
24.85 mi14:12:053:20:388:046:45
7:54
+0:01
25.2M
25.20 mi14:14:563:23:298:042:51
8:16
+0:22
Finish
26.22 mi14:22:423:31:158:047:46
7:37
-0:39

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

7:37 /mi

Average Pace

8:04 /mi

Slowest Pace

8:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:22:36

96% of race

Time at Steady Pace

8:39

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:03 /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 mi11:16:0924:427:5724:42
7:57
#13642
10K
6.21 mi11:40:3449:077:5424:25
7:52
#13630
15K
9.32 mi12:05:231:13:567:5624:49
7:59
#13833
20K
12.43 mi12:30:121:38:457:5724:49
7:59
#13665
Half
13.11 mi12:35:361:44:097:575:24
7:55
#13664
25K
15.53 mi12:55:082:03:417:5819:32
8:03
#13570
30K
18.64 mi13:21:072:29:408:0225:59
8:22
#13498
20M
20.00 mi13:32:292:41:028:0311:22
8:22
#13436
21M
21.00 mi13:41:082:49:418:058:39
8:39
#13298
35K
21.75 mi13:47:112:55:448:056:03
8:05
#13254
23M
23.00 mi13:57:273:06:008:0510:16
8:12
#13094
24M
24.00 mi14:05:203:13:538:057:53
7:53
#12966
40K
24.85 mi14:12:053:20:388:046:45
7:54
#12828
25.2M
25.20 mi14:14:563:23:298:042:51
8:16
#12744
Finish
26.22 mi14:22:423:31:158:047:46
7:37
#12609
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi136429813981314268(Top 54%)10008(Top 66%)10008(Top 704%)
10K6.21 mi3.10 mi13630+129786+279786+2713624(Top 51%)9800(Top 65%)9800(Top 689%)
15K9.32 mi3.11 mi13833-2039855-699855-6914268(Top 54%)10008(Top 66%)10008(Top 704%)
20K12.43 mi3.11 mi13665+1689759+969759+9613299(Top 50%)9574(Top 63%)9574(Top 673%)
Half13.11 mi0.68 mi13664+19760-19760-113615(Top 51%)9725(Top 64%)9725(Top 684%)
25K15.53 mi2.42 mi13570+949709+519709+5113181(Top 50%)9428(Top 62%)9428(Top 663%)
30K18.64 mi3.11 mi13498+729643+669643+6613427(Top 50%)9422(Top 62%)9422(Top 663%)
20M20.00 mi1.36 mi13436+629598+459598+4512770(Top 48%)9027(Top 59%)9027(Top 635%)
21M21.00 mi1.00 mi13298+1389528+709528+7011347(Top 43%)8280(Top 55%)8280(Top 582%)
35K21.75 mi0.75 mi13254+449492+369492+3612691(Top 48%)8855(Top 58%)8855(Top 623%)
23M23.00 mi1.25 mi13094+1609400+929400+9211183(Top 42%)8066(Top 53%)8066(Top 567%)
24M24.00 mi1.00 mi12966+1289321+799321+7910404(Top 39%)7613(Top 50%)7613(Top 535%)
40K24.85 mi0.85 mi12828+1389242+799242+799313(Top 35%)6999(Top 46%)6999(Top 492%)
25.2M25.20 mi0.35 mi12744+849204+389204+388095(Top 30%)6255(Top 41%)6255(Top 440%)
Finish26.22 mi1.02 mi12609+1359124+809124+809412(Top 35%)6981(Top 46%)6981(Top 491%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21story building
+97ft-345ft

Overall

14268

Males

10008

M55-59

10008

5K→10K

3.1 - 6.2 mi

Top 51%
×5story building
+79ft-138ft

Overall

13624

Males

9800

M55-59

9800

10K→15K

6.2 - 9.3 mi

Top 54%
×3story building
+67ft-78ft

Overall

14268

Males

10008

M55-59

10008

15K→20K

9.3 - 12.4 mi

Top 50%
×5story building
+106ft-86ft

Overall

13299

Males

9574

M55-59

9574

20K→Half

12.4 - 13.1 mi

Top 51%
×2story building
+19ft-37ft

Overall

13615

Males

9725

M55-59

9725

Half→25K

13.1 - 15.5 mi

Top 50%
×4story building
+66ft-88ft

Overall

13181

Males

9428

M55-59

9428

25K→30K

15.5 - 18.6 mi

Top 50%
×9story building
+181ft-148ft

Overall

13427

Males

9422

M55-59

9422

30K→20M

18.6 - 20.0 mi

Top 48%
×5story building
+64ft-50ft

Overall

12770

Males

9027

M55-59

9027

20M→21M

20.0 - 21.0 mi

Top 43%
×8story building
+106ft-24ft

Overall

11347

Males

8280

M55-59

8280

21M→35K

21.0 - 21.8 mi

Top 48%
×7story building
+17ft-86ft

Overall

12691

Males

8855

M55-59

8855

35K→23M

21.8 - 23.0 mi

Top 42%
×5story building
+23ft-63ft

Overall

11183

Males

8066

M55-59

8066

23M→24M

23.0 - 24.0 mi

Top 39%
×6story building
+12ft-82ft

Overall

10404

Males

7613

M55-59

7613

24M→40K

24.0 - 24.9 mi

Top 35%
×1story
+6ft-20ft

Overall

9313

Males

6999

M55-59

6999

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

8095

Males

6255

M55-59

6255

25.2M→Finish

25.2 - 26.2 mi

Top 35%
×2story building
+22ft-21ft

Overall

9412

Males

6981

M55-59

6981

Passing Analysis

Category:
Athletes Passed
2158
Passed By
1125
Net Change
+1033
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13642
5K → 10K298286+12#13642#13630
10K → 15K104307-203#13630#13833
15K → 20K26395+168#13833#13665
20K → Half2322+1#13665#13664
Half → 25K17076+94#13664#13570
25K → 30K236164+72#13570#13498
30K → 20M11351+62#13498#13436
20M → 21M17032+138#13436#13298
21M → 35K7531+44#13298#13254
35K → 23M18525+160#13254#13094
23M → 24M14113+128#13094#12966
24M → 40K1468+138#12966#12828
40K → 25.2M873+84#12828#12744
25.2M → Finish14712+135#12744#12609
TOTALS21581125+1033
📊

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