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BOSTON MARATHON 2023

Nate Szymanowski

Bib: 6630•M

WA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 17%
Gender (Male)
#0 / 15176
Top 27%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:55
Rank: #6576
Start → 5K
21:55 | 7:03/mi
10K· 6.21 mi
43:12
Rank: #6208 (+368)
5K → 10K
21:17 | 6:51/mi
15K· 9.32 mi
1:04:09
Rank: #5721 (+487)
10K → 15K
20:57 | 6:45/mi
20K· 12.43 mi
1:25:20
Rank: #5455 (+266)
15K → 20K
21:11 | 6:49/mi
Half· 13.11 mi
1:29:54
Rank: #5408 (+47)
20K → Half
4:34 | 6:42/mi
25K· 15.53 mi
1:46:19
Rank: #5126 (+282)
Half → 25K
16:25 | 6:46/mi
30K· 18.64 mi
2:07:56
Rank: #4868 (+258)
25K → 30K
21:37 | 6:57/mi
20M
2:17:30
Rank: #4787 (+81)
30K → 20M
9:34 | 7:02/mi
21M
2:25:03
Rank: #4784 (+3)
20M → 21M
7:33 | 7:33/mi
35K· 21.75 mi
2:30:07
Rank: #4734 (+50)
21M → 35K
5:04 | 6:46/mi
23M
2:38:56
Rank: #4659 (+75)
35K → 23M
8:49 | 7:03/mi
24M
2:45:49
Rank: #4607 (+52)
23M → 24M
6:53 | 6:53/mi
40K· 24.85 mi
2:51:41
Rank: #4516 (+91)
24M → 40K
5:52 | 6:52/mi
25.2M
2:54:17
Rank: #4506 (+10)
40K → 25.2M
2:36 | 7:32/mi
Finish· 26.22 mi
3:01:17
Rank: #4474 (+32)
25.2M → Finish
7:00 | 6:52/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:54
Pace6:51 /mi
2nd Half
Distance13.11 mi
Time1:31:23
Pace6:58 /mi
📊Positive Split: 1.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:1721:557:0321:55
7:03
-
10K
6.21 mi10:46:3443:126:5721:17
6:51
-0:12
15K
9.32 mi11:07:311:04:096:5320:57
6:45
-0:06
20K
12.43 mi11:28:421:25:206:5221:11
6:49
+0:04
Half
13.11 mi11:33:161:29:546:514:34
6:42
-0:07
25K
15.53 mi11:49:411:46:196:5116:25
6:46
+0:04
30K
18.64 mi12:11:182:07:566:5221:37
6:57
+0:11
20M
20.00 mi12:20:522:17:306:529:34
7:02
+0:05
21M
21.00 mi12:28:252:25:036:547:33
7:33
+0:31
35K
21.75 mi12:33:292:30:076:545:04
6:46
-0:47
23M
23.00 mi12:42:182:38:566:558:49
7:03
+0:17
24M
24.00 mi12:49:112:45:496:556:53
6:53
-0:10
40K
24.85 mi12:55:032:51:416:545:52
6:52
-0:01
25.2M
25.20 mi12:57:392:54:176:552:36
7:32
+0:40
Finish
26.22 mi13:04:393:01:176:557:00
6:52
-0:40

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

6:42 /mi

Average Pace

6:55 /mi

Slowest Pace

7:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:51:08

94% of race

Time at Steady Pace

10:09

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:55 /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 mi10:25:1721:557:0321:55
7:03
#6576
10K
6.21 mi10:46:3443:126:5721:17
6:51
#6208
15K
9.32 mi11:07:311:04:096:5320:57
6:45
#5721
20K
12.43 mi11:28:421:25:206:5221:11
6:49
#5455
Half
13.11 mi11:33:161:29:546:514:34
6:42
#5408
25K
15.53 mi11:49:411:46:196:5116:25
6:46
#5126
30K
18.64 mi12:11:182:07:566:5221:37
6:57
#4868
20M
20.00 mi12:20:522:17:306:529:34
7:02
#4787
21M
21.00 mi12:28:252:25:036:547:33
7:33
#4784
35K
21.75 mi12:33:292:30:076:545:04
6:46
#4734
23M
23.00 mi12:42:182:38:566:558:49
7:03
#4659
24M
24.00 mi12:49:112:45:496:556:53
6:53
#4607
40K
24.85 mi12:55:032:51:416:545:52
6:52
#4516
25.2M
25.20 mi12:57:392:54:176:552:36
7:32
#4506
Finish
26.22 mi13:04:393:01:176:557:00
6:52
#4474
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi6576594159414544(Top 17%)4243(Top 28%)4243(Top 80%)
10K6.21 mi3.10 mi6208+3685645+2965645+2965738(Top 22%)5250(Top 35%)5250(Top 99%)
15K9.32 mi3.11 mi5721+4875254+3915254+3914544(Top 17%)4243(Top 28%)4243(Top 80%)
20K12.43 mi3.11 mi5455+2665034+2205034+2204605(Top 17%)4290(Top 28%)4290(Top 81%)
Half13.11 mi0.68 mi5408+474999+354999+354292(Top 16%)4016(Top 26%)4016(Top 76%)
25K15.53 mi2.42 mi5126+2824754+2454754+2453906(Top 15%)3674(Top 24%)3674(Top 70%)
30K18.64 mi3.11 mi4868+2584529+2254529+2254071(Top 15%)3801(Top 25%)3801(Top 72%)
20M20.00 mi1.36 mi4787+814453+764453+764268(Top 16%)3939(Top 26%)3939(Top 75%)
21M21.00 mi1.00 mi4784+34446+74446+74809(Top 18%)4336(Top 29%)4336(Top 82%)
35K21.75 mi0.75 mi4734+504403+434403+434027(Top 15%)3702(Top 24%)3702(Top 70%)
23M23.00 mi1.25 mi4659+754331+724331+723996(Top 15%)3677(Top 24%)3677(Top 70%)
24M24.00 mi1.00 mi4607+524289+424289+424095(Top 15%)3726(Top 25%)3726(Top 71%)
40K24.85 mi0.85 mi4516+914206+834206+833138(Top 12%)2882(Top 19%)2882(Top 55%)
25.2M25.20 mi0.35 mi4506+104196+104196+104065(Top 15%)3607(Top 24%)3607(Top 68%)
Finish26.22 mi1.02 mi4474+324164+324164+324443(Top 17%)3876(Top 26%)3876(Top 73%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21stories
+97ft-345ft

Overall

4544

Males

4243

M18-39

4243

5K→10K

3.1 - 6.2 mi

Top 22%
×5stories
+79ft-138ft

Overall

5738

Males

5250

M18-39

5250

10K→15K

6.2 - 9.3 mi

Top 17%
×3stories
+67ft-78ft

Overall

4544

Males

4243

M18-39

4243

15K→20K

9.3 - 12.4 mi

Top 17%
×5stories
+106ft-86ft

Overall

4605

Males

4290

M18-39

4290

20K→Half

12.4 - 13.1 mi

Top 16%
×2stories
+19ft-37ft

Overall

4292

Males

4016

M18-39

4016

Half→25K

13.1 - 15.5 mi

Top 15%
×4stories
+66ft-88ft

Overall

3906

Males

3674

M18-39

3674

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

4071

Males

3801

M18-39

3801

30K→20M

18.6 - 20.0 mi

Top 16%
×5stories
+64ft-50ft

Overall

4268

Males

3939

M18-39

3939

20M→21M

20.0 - 21.0 mi

Top 18%
×8stories
+106ft-24ft

Overall

4809

Males

4336

M18-39

4336

21M→35K

21.0 - 21.8 mi

Top 15%
×7stories
+17ft-86ft

Overall

4027

Males

3702

M18-39

3702

35K→23M

21.8 - 23.0 mi

Top 15%
×5stories
+23ft-63ft

Overall

3996

Males

3677

M18-39

3677

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

4095

Males

3726

M18-39

3726

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3138

Males

2882

M18-39

2882

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1story
+13ft-16ft

Overall

4065

Males

3607

M18-39

3607

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2stories
+22ft-21ft

Overall

4443

Males

3876

M18-39

3876

Passing Analysis

Category:
Athletes Passed
2419
Passed By
317
Net Change
+2102
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6576
5K → 10K43466+368#6576#6208
10K → 15K49710+487#6208#5721
15K → 20K27913+266#5721#5455
20K → Half492+47#5455#5408
Half → 25K29210+282#5408#5126
25K → 30K28931+258#5126#4868
30K → 20M10322+81#4868#4787
20M → 21M5552+3#4787#4784
21M → 35K6313+50#4784#4734
35K → 23M10429+75#4734#4659
23M → 24M6816+52#4659#4607
24M → 40K965+91#4607#4516
40K → 25.2M2414+10#4516#4506
25.2M → Finish6634+32#4506#4474
TOTALS2419317+2102
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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