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BOSTON MARATHON 2023

Justin Steil

Bib: 4216•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 16%
Gender (Male)
#0 / 15176
Top 27%
Masters (Masters Men)
#0 / 9891
Top 13%
Division (M45-49)
#0 / 2252
Top 16%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:27
Rank: #2755
Start → 5K
20:27 | 6:35/mi
10K· 6.21 mi
40:19
Rank: #2438 (+317)
5K → 10K
19:52 | 6:24/mi
15K· 9.32 mi
1:00:26
Rank: #2460 (-22)
10K → 15K
20:07 | 6:28/mi
20K· 12.43 mi
1:20:57
Rank: #2531 (-71)
15K → 20K
20:31 | 6:36/mi
Half· 13.11 mi
1:25:25
Rank: #2556 (-25)
20K → Half
4:28 | 6:33/mi
25K· 15.53 mi
1:42:12
Rank: #2860 (-304)
Half → 25K
16:47 | 6:55/mi
30K· 18.64 mi
2:04:20
Rank: #3199 (-339)
25K → 30K
22:08 | 7:07/mi
20M
2:14:07
Rank: #3331 (-132)
30K → 20M
9:47 | 7:12/mi
21M
2:21:45
Rank: #3453 (-122)
20M → 21M
7:38 | 7:38/mi
35K· 21.75 mi
2:26:55
Rank: #3505 (-52)
21M → 35K
5:10 | 6:54/mi
23M
2:35:57
Rank: #3571 (-66)
35K → 23M
9:02 | 7:13/mi
24M
2:43:20
Rank: #3780 (-209)
23M → 24M
7:23 | 7:23/mi
40K· 24.85 mi
2:50:03
Rank: #4041 (-261)
24M → 40K
6:43 | 7:51/mi
25.2M
2:52:57
Rank: #4156 (-115)
40K → 25.2M
2:54 | 8:25/mi
Finish· 26.22 mi
3:00:32
Rank: #4316 (-160)
25.2M → Finish
7:35 | 7:26/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:25
Pace6:31 /mi
2nd Half
Distance13.11 mi
Time1:35:07
Pace7:15 /mi
📊Positive Split: 11.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:1020:276:3520:27
6:35
-
10K
6.21 mi10:42:0240:196:2919:52
6:24
-0:11
15K
9.32 mi11:02:091:00:266:2920:07
6:28
+0:04
20K
12.43 mi11:22:401:20:576:3120:31
6:36
+0:08
Half
13.11 mi11:27:081:25:256:314:28
6:33
-0:03
25K
15.53 mi11:43:551:42:126:3516:47
6:55
+0:22
30K
18.64 mi12:06:032:04:206:4022:08
7:07
+0:12
20M
20.00 mi12:15:502:14:076:429:47
7:12
+0:05
21M
21.00 mi12:23:282:21:456:457:38
7:38
+0:26
35K
21.75 mi12:28:382:26:556:455:10
6:54
-0:44
23M
23.00 mi12:37:402:35:576:479:02
7:13
+0:19
24M
24.00 mi12:45:032:43:206:487:23
7:23
+0:10
40K
24.85 mi12:51:462:50:036:516:43
7:51
+0:28
25.2M
25.20 mi12:54:402:52:576:522:54
8:25
+0:34
Finish
26.22 mi13:02:153:00:326:537:35
7:26
-0:59

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

6:24 /mi

Average Pace

6:53 /mi

Slowest Pace

8:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:25:25

47% of race

Time at Steady Pace

1:10:17

39% of race

Time at Slower Pace

24:50

14% of race

Average Pace: 6:53 /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 mi10:22:1020:276:3520:27
6:35
#2755
10K
6.21 mi10:42:0240:196:2919:52
6:24
#2438
15K
9.32 mi11:02:091:00:266:2920:07
6:28
#2460
20K
12.43 mi11:22:401:20:576:3120:31
6:36
#2531
Half
13.11 mi11:27:081:25:256:314:28
6:33
#2556
25K
15.53 mi11:43:551:42:126:3516:47
6:55
#2860
30K
18.64 mi12:06:032:04:206:4022:08
7:07
#3199
20M
20.00 mi12:15:502:14:076:429:47
7:12
#3331
21M
21.00 mi12:23:282:21:456:457:38
7:38
#3453
35K
21.75 mi12:28:382:26:556:455:10
6:54
#3505
23M
23.00 mi12:37:402:35:576:479:02
7:13
#3571
24M
24.00 mi12:45:032:43:206:487:23
7:23
#3780
40K
24.85 mi12:51:462:50:036:516:43
7:51
#4041
25.2M
25.20 mi12:54:402:52:576:522:54
8:25
#4156
Finish
26.22 mi13:02:153:00:326:537:35
7:26
#4316
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi2755262326232501(Top 9%)2400(Top 16%)2400(Top 107%)
10K6.21 mi3.10 mi2438+3172329+2942329+2942225(Top 8%)2131(Top 14%)2131(Top 95%)
15K9.32 mi3.11 mi2460-222351-222351-222501(Top 9%)2400(Top 16%)2400(Top 107%)
20K12.43 mi3.11 mi2531-712422-712422-712886(Top 11%)2754(Top 18%)2754(Top 122%)
Half13.11 mi0.68 mi2556-252449-272449-273114(Top 12%)2979(Top 20%)2979(Top 132%)
25K15.53 mi2.42 mi2860-3042734-2852734-2855081(Top 19%)4691(Top 31%)4691(Top 208%)
30K18.64 mi3.11 mi3199-3393046-3123046-3125054(Top 19%)4643(Top 31%)4643(Top 206%)
20M20.00 mi1.36 mi3331-1323156-1103156-1105084(Top 19%)4606(Top 30%)4606(Top 205%)
21M21.00 mi1.00 mi3453-1223269-1133269-1135242(Top 20%)4638(Top 31%)4638(Top 206%)
35K21.75 mi0.75 mi3505-523320-513320-514783(Top 18%)4319(Top 28%)4319(Top 192%)
23M23.00 mi1.25 mi3571-663373-533373-534854(Top 18%)4353(Top 29%)4353(Top 193%)
24M24.00 mi1.00 mi3780-2093555-1823555-1826889(Top 26%)5642(Top 37%)5642(Top 251%)
40K24.85 mi0.85 mi4041-2613783-2283783-2288970(Top 34%)6780(Top 45%)6780(Top 301%)
25.2M25.20 mi0.35 mi4156-1153889-1063889-1068830(Top 33%)6603(Top 44%)6603(Top 293%)
Finish26.22 mi1.02 mi4316-1604026-1374026-1378036(Top 30%)6172(Top 41%)6172(Top 274%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21stories
+97ft-345ft

Overall

2501

Males

2400

M45-49

2400

5K→10K

3.1 - 6.2 mi

Top 8%
×5stories
+79ft-138ft

Overall

2225

Males

2131

M45-49

2131

10K→15K

6.2 - 9.3 mi

Top 9%
×3stories
+67ft-78ft

Overall

2501

Males

2400

M45-49

2400

15K→20K

9.3 - 12.4 mi

Top 11%
×5stories
+106ft-86ft

Overall

2886

Males

2754

M45-49

2754

20K→Half

12.4 - 13.1 mi

Top 12%
×2stories
+19ft-37ft

Overall

3114

Males

2979

M45-49

2979

Half→25K

13.1 - 15.5 mi

Top 19%
×4stories
+66ft-88ft

Overall

5081

Males

4691

M45-49

4691

25K→30K

15.5 - 18.6 mi

Top 19%
×9stories
+181ft-148ft

Overall

5054

Males

4643

M45-49

4643

30K→20M

18.6 - 20.0 mi

Top 19%
×5stories
+64ft-50ft

Overall

5084

Males

4606

M45-49

4606

20M→21M

20.0 - 21.0 mi

Top 20%
×8stories
+106ft-24ft

Overall

5242

Males

4638

M45-49

4638

21M→35K

21.0 - 21.8 mi

Top 18%
×7stories
+17ft-86ft

Overall

4783

Males

4319

M45-49

4319

35K→23M

21.8 - 23.0 mi

Top 18%
×5stories
+23ft-63ft

Overall

4854

Males

4353

M45-49

4353

23M→24M

23.0 - 24.0 mi

Top 26%
×6stories
+12ft-82ft

Overall

6889

Males

5642

M45-49

5642

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

8970

Males

6780

M45-49

6780

40K→25.2M

24.9 - 25.2 mi

Top 33%
×1story
+13ft-16ft

Overall

8830

Males

6603

M45-49

6603

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2stories
+22ft-21ft

Overall

8036

Males

6172

M45-49

6172

Passing Analysis

Category:
Athletes Passed
636
Passed By
2197
Net Change
-1561
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2755
5K → 10K35235+317#2755#2438
10K → 15K6486-22#2438#2460
15K → 20K35106-71#2460#2531
20K → Half530-25#2531#2556
Half → 25K5309-304#2556#2860
25K → 30K26365-339#2860#3199
30K → 20M27159-132#3199#3331
20M → 21M21143-122#3331#3453
21M → 35K1971-52#3453#3505
35K → 23M43109-66#3505#3571
23M → 24M8217-209#3571#3780
24M → 40K12273-261#3780#4041
40K → 25.2M7122-115#4041#4156
25.2M → Finish12172-160#4156#4316
TOTALS6362197-1561
📊

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