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BOSTON MARATHON 2023

Sam Njue

Bib: 1619•M

NH

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 7%
Gender (Male)
#0 / 15176
Top 12%
Masters (Masters Men)
#0 / 9891
Top 4%
Division (M40-44)
#0 / 2241
Top 11%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:55
Rank: #3930
Start → 5K
20:55 | 6:44/mi
10K· 6.21 mi
41:33
Rank: #3824 (+106)
5K → 10K
20:38 | 6:38/mi
15K· 9.32 mi
1:01:33
Rank: #3220 (+604)
10K → 15K
20:00 | 6:26/mi
20K· 12.43 mi
1:21:41
Rank: #2885 (+335)
15K → 20K
20:08 | 6:29/mi
Half· 13.11 mi
1:26:10
Rank: #2894 (-9)
20K → Half
4:29 | 6:34/mi
25K· 15.53 mi
1:41:55
Rank: #2743 (+151)
Half → 25K
15:45 | 6:30/mi
30K· 18.64 mi
2:02:20
Rank: #2527 (+216)
25K → 30K
20:25 | 6:34/mi
20M
2:11:12
Rank: #2425 (+102)
30K → 20M
8:52 | 6:31/mi
21M
2:17:55
Rank: #2326 (+99)
20M → 21M
6:43 | 6:43/mi
35K· 21.75 mi
2:22:40
Rank: #2287 (+39)
21M → 35K
4:45 | 6:21/mi
23M
2:30:45
Rank: #2204 (+83)
35K → 23M
8:05 | 6:27/mi
24M
2:37:02
Rank: #2127 (+77)
23M → 24M
6:17 | 6:17/mi
40K· 24.85 mi
2:42:29
Rank: #2060 (+67)
24M → 40K
5:27 | 6:22/mi
25.2M
2:44:52
Rank: #2034 (+26)
40K → 25.2M
2:23 | 6:55/mi
Finish· 26.22 mi
2:51:00
Rank: #1936 (+98)
25.2M → Finish
6:08 | 6:01/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:26:10
Pace6:34 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:24:50
Pace6:28 /mi
📊Negative Split: 1.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:3220:556:4420:55
6:44
-
10K
6.21 mi10:42:1041:336:4120:38
6:38
-0:06
15K
9.32 mi11:02:101:01:336:3620:00
6:26
-0:12
20K
12.43 mi11:22:181:21:416:3420:08
6:29
+0:03
Half
13.11 mi11:26:471:26:106:344:29
6:34
+0:05
25K
15.53 mi11:42:321:41:556:3415:45
6:30
-0:04
30K
18.64 mi12:02:572:02:206:3420:25
6:34
+0:04
20M
20.00 mi12:11:492:11:126:348:52
6:31
-0:03
21M
21.00 mi12:18:322:17:556:346:43
6:43
+0:12
35K
21.75 mi12:23:172:22:406:344:45
6:21
-0:22
23M
23.00 mi12:31:222:30:456:338:05
6:27
+0:06
24M
24.00 mi12:37:392:37:026:336:17
6:17
-0:10
40K
24.85 mi12:43:062:42:296:325:27
6:22
+0:05
25.2M
25.20 mi12:45:292:44:526:332:23
6:55
+0:33
Finish
26.22 mi12:51:372:51:006:326:08
6:01
-0:54

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

6:01 /mi

Average Pace

6:32 /mi

Slowest Pace

6:55 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:00:21

70% of race

Time at Steady Pace

50:39

30% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:31 /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 mi10:21:3220:556:4420:55
6:44
#3930
10K
6.21 mi10:42:1041:336:4120:38
6:38
#3824
15K
9.32 mi11:02:101:01:336:3620:00
6:26
#3220
20K
12.43 mi11:22:181:21:416:3420:08
6:29
#2885
Half
13.11 mi11:26:471:26:106:344:29
6:34
#2894
25K
15.53 mi11:42:321:41:556:3415:45
6:30
#2743
30K
18.64 mi12:02:572:02:206:3420:25
6:34
#2527
20M
20.00 mi12:11:492:11:126:348:52
6:31
#2425
21M
21.00 mi12:18:322:17:556:346:43
6:43
#2326
35K
21.75 mi12:23:172:22:406:344:45
6:21
#2287
23M
23.00 mi12:31:222:30:456:338:05
6:27
#2204
24M
24.00 mi12:37:392:37:026:336:17
6:17
#2127
40K
24.85 mi12:43:062:42:296:325:27
6:22
#2060
25.2M
25.20 mi12:45:292:44:526:332:23
6:55
#2034
Finish
26.22 mi12:51:372:51:006:326:08
6:01
#1936
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi3930368736872292(Top 9%)2200(Top 14%)2200(Top 98%)
10K6.21 mi3.10 mi3824+1063599+883599+883782(Top 14%)3566(Top 23%)3566(Top 159%)
15K9.32 mi3.11 mi3220+6043064+5353064+5352292(Top 9%)2200(Top 14%)2200(Top 98%)
20K12.43 mi3.11 mi2885+3352755+3092755+3092181(Top 8%)2093(Top 14%)2093(Top 93%)
Half13.11 mi0.68 mi2894-92762-72762-73158(Top 12%)3008(Top 20%)3008(Top 134%)
25K15.53 mi2.42 mi2743+1512620+1422620+1422142(Top 8%)2055(Top 14%)2055(Top 92%)
30K18.64 mi3.11 mi2527+2162418+2022418+2021842(Top 7%)1765(Top 12%)1765(Top 79%)
20M20.00 mi1.36 mi2425+1022321+972321+971552(Top 6%)1480(Top 10%)1480(Top 66%)
21M21.00 mi1.00 mi2326+992228+932228+931155(Top 4%)1101(Top 7%)1101(Top 49%)
35K21.75 mi0.75 mi2287+392191+372191+371757(Top 7%)1670(Top 11%)1670(Top 75%)
23M23.00 mi1.25 mi2204+832112+792112+791298(Top 5%)1229(Top 8%)1229(Top 55%)
24M24.00 mi1.00 mi2127+772041+712041+711314(Top 5%)1244(Top 8%)1244(Top 56%)
40K24.85 mi0.85 mi2060+671975+661975+661137(Top 4%)1076(Top 7%)1076(Top 48%)
25.2M25.20 mi0.35 mi2034+261950+251950+251475(Top 6%)1392(Top 9%)1392(Top 62%)
Finish26.22 mi1.02 mi1936+981853+971853+97787(Top 3%)754(Top 5%)754(Top 34%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21stories
+97ft-345ft

Overall

2292

Males

2200

M40-44

2200

5K→10K

3.1 - 6.2 mi

Top 14%
×5stories
+79ft-138ft

Overall

3782

Males

3566

M40-44

3566

10K→15K

6.2 - 9.3 mi

Top 9%
×3stories
+67ft-78ft

Overall

2292

Males

2200

M40-44

2200

15K→20K

9.3 - 12.4 mi

Top 8%
×5stories
+106ft-86ft

Overall

2181

Males

2093

M40-44

2093

20K→Half

12.4 - 13.1 mi

Top 12%
×2stories
+19ft-37ft

Overall

3158

Males

3008

M40-44

3008

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2142

Males

2055

M40-44

2055

25K→30K

15.5 - 18.6 mi

Top 7%
×9stories
+181ft-148ft

Overall

1842

Males

1765

M40-44

1765

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1552

Males

1480

M40-44

1480

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

1155

Males

1101

M40-44

1101

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

1757

Males

1670

M40-44

1670

35K→23M

21.8 - 23.0 mi

Top 5%
×5stories
+23ft-63ft

Overall

1298

Males

1229

M40-44

1229

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1314

Males

1244

M40-44

1244

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1137

Males

1076

M40-44

1076

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1475

Males

1392

M40-44

1392

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2stories
+22ft-21ft

Overall

787

Males

754

M40-44

754

Passing Analysis

Category:
Athletes Passed
2221
Passed By
227
Net Change
+1994
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3930
5K → 10K280174+106#3930#3824
10K → 15K6073+604#3824#3220
15K → 20K3361+335#3220#2885
20K → Half1120-9#2885#2894
Half → 25K1598+151#2894#2743
25K → 30K2215+216#2743#2527
30K → 20M1042+102#2527#2425
20M → 21M1001+99#2425#2326
21M → 35K434+39#2326#2287
35K → 23M852+83#2287#2204
23M → 24M792+77#2204#2127
24M → 40K703+67#2127#2060
40K → 25.2M282+26#2060#2034
25.2M → Finish980+98#2034#1936
TOTALS2221227+1994
📊

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