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BOSTON MARATHON 2023

Nathan Sicher

Bib: 3342•M

MO

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 4%
Gender (Male)
#0 / 15176
Top 7%
Masters (Masters Men)
#0 / 9891
Top 2%
Division (M40-44)
#0 / 2241
Top 5%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:33
Rank: #2946
Start → 5K
20:33 | 6:37/mi
10K· 6.21 mi
40:16
Rank: #2381 (+565)
5K → 10K
19:43 | 6:21/mi
15K· 9.32 mi
59:55
Rank: #2131 (+250)
10K → 15K
19:39 | 6:19/mi
20K· 12.43 mi
1:19:21
Rank: #1863 (+268)
15K → 20K
19:26 | 6:15/mi
Half· 13.11 mi
1:23:36
Rank: #1843 (+20)
20K → Half
4:15 | 6:14/mi
25K· 15.53 mi
1:38:48
Rank: #1748 (+95)
Half → 25K
15:12 | 6:16/mi
30K· 18.64 mi
1:58:29
Rank: #1570 (+178)
25K → 30K
19:41 | 6:20/mi
20M
2:06:55
Rank: #1465 (+105)
30K → 20M
8:26 | 6:12/mi
21M
2:13:24
Rank: #1386 (+79)
20M → 21M
6:29 | 6:29/mi
35K· 21.75 mi
2:17:56
Rank: #1355 (+31)
21M → 35K
4:32 | 6:04/mi
23M
2:25:44
Rank: #1282 (+73)
35K → 23M
7:48 | 6:14/mi
24M
2:31:41
Rank: #1205 (+77)
23M → 24M
5:57 | 5:57/mi
40K· 24.85 mi
2:36:57
Rank: #1160 (+45)
24M → 40K
5:16 | 6:10/mi
25.2M
2:39:14
Rank: #1151 (+9)
40K → 25.2M
2:17 | 6:37/mi
Finish· 26.22 mi
2:45:21
Rank: #1119 (+32)
25.2M → Finish
6:07 | 6:00/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:23:36
Pace6:23 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:21:45
Pace6:14 /mi
📊Negative Split: 2.2% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:0620:336:3720:33
6:37
-
10K
6.21 mi10:41:4940:166:2919:43
6:21
-0:16
15K
9.32 mi11:01:2859:556:2619:39
6:19
-0:02
20K
12.43 mi11:20:541:19:216:2319:26
6:15
-0:04
Half
13.11 mi11:25:091:23:366:234:15
6:14
-0:01
25K
15.53 mi11:40:211:38:486:2215:12
6:16
+0:02
30K
18.64 mi12:00:021:58:296:2119:41
6:20
+0:04
20M
20.00 mi12:08:282:06:556:218:26
6:12
-0:08
21M
21.00 mi12:14:572:13:246:216:29
6:29
+0:17
35K
21.75 mi12:19:292:17:566:214:32
6:04
-0:25
23M
23.00 mi12:27:172:25:446:207:48
6:14
+0:10
24M
24.00 mi12:33:142:31:416:195:57
5:57
-0:17
40K
24.85 mi12:38:302:36:576:195:16
6:10
+0:13
25.2M
25.20 mi12:40:472:39:146:192:17
6:37
+0:27
Finish
26.22 mi12:46:542:45:216:196:07
6:00
-0:37

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

5:57 /mi

Average Pace

6:19 /mi

Slowest Pace

6:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:22:31

86% of race

Time at Steady Pace

22:50

14% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:18 /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 mi10:22:0620:336:3720:33
6:37
#2946
10K
6.21 mi10:41:4940:166:2919:43
6:21
#2381
15K
9.32 mi11:01:2859:556:2619:39
6:19
#2131
20K
12.43 mi11:20:541:19:216:2319:26
6:15
#1863
Half
13.11 mi11:25:091:23:366:234:15
6:14
#1843
25K
15.53 mi11:40:211:38:486:2215:12
6:16
#1748
30K
18.64 mi12:00:021:58:296:2119:41
6:20
#1570
20M
20.00 mi12:08:282:06:556:218:26
6:12
#1465
21M
21.00 mi12:14:572:13:246:216:29
6:29
#1386
35K
21.75 mi12:19:292:17:566:214:32
6:04
#1355
23M
23.00 mi12:27:172:25:446:207:48
6:14
#1282
24M
24.00 mi12:33:142:31:416:195:57
5:57
#1205
40K
24.85 mi12:38:302:36:576:195:16
6:10
#1160
25.2M
25.20 mi12:40:472:39:146:192:17
6:37
#1151
Finish
26.22 mi12:46:542:45:216:196:07
6:00
#1119
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi2946279627961752(Top 7%)1678(Top 11%)1678(Top 75%)
10K6.21 mi3.10 mi2381+5652273+5232273+5231953(Top 7%)1870(Top 12%)1870(Top 83%)
15K9.32 mi3.11 mi2131+2502043+2302043+2301752(Top 7%)1678(Top 11%)1678(Top 75%)
20K12.43 mi3.11 mi1863+2681783+2601783+2601233(Top 5%)1180(Top 8%)1180(Top 53%)
Half13.11 mi0.68 mi1843+201764+191764+191461(Top 5%)1397(Top 9%)1397(Top 62%)
25K15.53 mi2.42 mi1748+951672+921672+921213(Top 5%)1159(Top 8%)1159(Top 52%)
30K18.64 mi3.11 mi1570+1781501+1711501+1711021(Top 4%)970(Top 6%)970(Top 43%)
20M20.00 mi1.36 mi1465+1051400+1011400+101666(Top 3%)629(Top 4%)629(Top 28%)
21M21.00 mi1.00 mi1386+791324+761324+76626(Top 2%)590(Top 4%)590(Top 26%)
35K21.75 mi0.75 mi1355+311292+321292+32830(Top 3%)787(Top 5%)787(Top 35%)
23M23.00 mi1.25 mi1282+731224+681224+68677(Top 3%)639(Top 4%)639(Top 29%)
24M24.00 mi1.00 mi1205+771149+751149+75467(Top 2%)440(Top 3%)440(Top 20%)
40K24.85 mi0.85 mi1160+451106+431106+43600(Top 2%)566(Top 4%)566(Top 25%)
25.2M25.20 mi0.35 mi1151+91097+91097+9712(Top 3%)677(Top 4%)677(Top 30%)
Finish26.22 mi1.02 mi1119+321066+311066+31733(Top 3%)701(Top 5%)701(Top 31%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21stories
+97ft-345ft

Overall

1752

Males

1678

M40-44

1678

5K→10K

3.1 - 6.2 mi

Top 7%
×5stories
+79ft-138ft

Overall

1953

Males

1870

M40-44

1870

10K→15K

6.2 - 9.3 mi

Top 7%
×3stories
+67ft-78ft

Overall

1752

Males

1678

M40-44

1678

15K→20K

9.3 - 12.4 mi

Top 5%
×5stories
+106ft-86ft

Overall

1233

Males

1180

M40-44

1180

20K→Half

12.4 - 13.1 mi

Top 5%
×2stories
+19ft-37ft

Overall

1461

Males

1397

M40-44

1397

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1213

Males

1159

M40-44

1159

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

1021

Males

970

M40-44

970

30K→20M

18.6 - 20.0 mi

Top 3%
×5stories
+64ft-50ft

Overall

666

Males

629

M40-44

629

20M→21M

20.0 - 21.0 mi

Top 2%
×8stories
+106ft-24ft

Overall

626

Males

590

M40-44

590

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

830

Males

787

M40-44

787

35K→23M

21.8 - 23.0 mi

Top 3%
×5stories
+23ft-63ft

Overall

677

Males

639

M40-44

639

23M→24M

23.0 - 24.0 mi

Top 2%
×6stories
+12ft-82ft

Overall

467

Males

440

M40-44

440

24M→40K

24.0 - 24.9 mi

Top 2%
×1story
+6ft-20ft

Overall

600

Males

566

M40-44

566

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1story
+13ft-16ft

Overall

712

Males

677

M40-44

677

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2stories
+22ft-21ft

Overall

733

Males

701

M40-44

701

Passing Analysis

Category:
Athletes Passed
1869
Passed By
42
Net Change
+1827
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2946
5K → 10K57712+565#2946#2381
10K → 15K2599+250#2381#2131
15K → 20K2680+268#2131#1863
20K → Half222+20#1863#1843
Half → 25K983+95#1843#1748
25K → 30K1802+178#1748#1570
30K → 20M1050+105#1570#1465
20M → 21M812+79#1465#1386
21M → 35K343+31#1386#1355
35K → 23M741+73#1355#1282
23M → 24M781+77#1282#1205
24M → 40K450+45#1205#1160
40K → 25.2M101+9#1160#1151
25.2M → Finish386+32#1151#1119
TOTALS186942+1827
📊

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