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BOSTON MARATHON 2023

Christopher Johnson

Bib: 30810•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
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
33:16
Rank: #25197
Start → 5K
33:16 | 10:42/mi
10K· 6.21 mi
1:06:19
Rank: #25042 (+155)
5K → 10K
33:03 | 10:38/mi
15K· 9.32 mi
1:39:38
Rank: #24959 (+83)
10K → 15K
33:19 | 10:43/mi
20K· 12.43 mi
2:14:14
Rank: #24923 (+36)
15K → 20K
34:36 | 11:08/mi
Half· 13.11 mi
2:21:56
Rank: #24945 (-22)
20K → Half
7:42 | 11:17/mi
25K· 15.53 mi
2:50:14
Rank: #24942 (+3)
Half → 25K
28:18 | 11:40/mi
30K· 18.64 mi
3:31:07
Rank: #25134 (-192)
25K → 30K
40:53 | 13:10/mi
20M
3:48:58
Rank: #25164 (-30)
30K → 20M
17:51 | 13:08/mi
21M
4:03:16
Rank: #25184 (-20)
20M → 21M
14:18 | 14:18/mi
35K· 21.75 mi
4:13:10
Rank: #25225 (-41)
21M → 35K
9:54 | 13:14/mi
23M
4:30:57
Rank: #25295 (-70)
35K → 23M
17:47 | 14:12/mi
24M
4:44:55
Rank: #25361 (-66)
23M → 24M
13:58 | 13:58/mi
40K· 24.85 mi
4:57:31
Rank: #25407 (-46)
24M → 40K
12:36 | 14:44/mi
25.2M
5:02:41
Rank: #25419 (-12)
40K → 25.2M
5:10 | 14:59/mi
Finish· 26.22 mi
5:15:48
Rank: #25456 (-37)
25.2M → Finish
13:07 | 12:52/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:21:56
Pace10:50 /mi
2nd Half
Distance13.11 mi
Time2:53:52
Pace13:16 /mi
📊Positive Split: 22.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:1633:1610:4233:16
10:42
-
10K
6.21 mi12:26:191:06:1910:4033:03
10:38
-0:04
15K
9.32 mi12:59:381:39:3810:4133:19
10:43
+0:05
20K
12.43 mi13:34:142:14:1410:4834:36
11:08
+0:25
Half
13.11 mi13:41:562:21:5610:507:42
11:17
+0:09
25K
15.53 mi14:10:142:50:1410:5828:18
11:40
+0:23
30K
18.64 mi14:51:073:31:0711:2040:53
13:10
+1:30
20M
20.00 mi15:08:583:48:5811:2717:51
13:08
-0:02
21M
21.00 mi15:23:164:03:1611:3514:18
14:18
+1:10
35K
21.75 mi15:33:104:13:1011:389:54
13:14
-1:04
23M
23.00 mi15:50:574:30:5711:4717:47
14:12
+0:58
24M
24.00 mi16:04:554:44:5511:5213:58
13:58
-0:14
40K
24.85 mi16:17:314:57:3111:5812:36
14:44
+0:46
25.2M
25.20 mi16:22:415:02:4112:015:10
14:59
+0:15
Finish
26.22 mi16:35:485:15:4812:0313:07
12:52
-2:07

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

10:38 /mi

Average Pace

12:03 /mi

Slowest Pace

14:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:50:14

54% of race

Time at Steady Pace

1:21:45

26% of race

Time at Slower Pace

1:03:49

20% of race

Average Pace: 12:03 /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 mi11:53:1633:1610:4233:16
10:42
#25197
10K
6.21 mi12:26:191:06:1910:4033:03
10:38
#25042
15K
9.32 mi12:59:381:39:3810:4133:19
10:43
#24959
20K
12.43 mi13:34:142:14:1410:4834:36
11:08
#24923
Half
13.11 mi13:41:562:21:5610:507:42
11:17
#24945
25K
15.53 mi14:10:142:50:1410:5828:18
11:40
#24942
30K
18.64 mi14:51:073:31:0711:2040:53
13:10
#25134
20M
20.00 mi15:08:583:48:5811:2717:51
13:08
#25164
21M
21.00 mi15:23:164:03:1611:3514:18
14:18
#25184
35K
21.75 mi15:33:104:13:1011:389:54
13:14
#25225
23M
23.00 mi15:50:574:30:5711:4717:47
14:12
#25295
24M
24.00 mi16:04:554:44:5511:5213:58
13:58
#25361
40K
24.85 mi16:17:314:57:3111:5812:36
14:44
#25407
25.2M
25.20 mi16:22:415:02:4112:015:10
14:59
#25419
Finish
26.22 mi16:35:485:15:4812:0313:07
12:52
#25456
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi25197146331463324833(Top 93%)14438(Top 95%)14438(Top 273%)
10K6.21 mi3.10 mi25042+15514562+7114562+7124924(Top 94%)14504(Top 96%)14504(Top 274%)
15K9.32 mi3.11 mi24959+8314525+3714525+3724833(Top 93%)14438(Top 95%)14438(Top 273%)
20K12.43 mi3.11 mi24923+3614489+3614489+3624793(Top 93%)14411(Top 95%)14411(Top 273%)
Half13.11 mi0.68 mi24945-2214497-814497-825287(Top 95%)14601(Top 96%)14601(Top 276%)
25K15.53 mi2.42 mi24942+314490+714490+724869(Top 93%)14408(Top 95%)14408(Top 273%)
30K18.64 mi3.11 mi25134-19214551-6114551-6125550(Top 96%)14658(Top 97%)14658(Top 277%)
20M20.00 mi1.36 mi25164-3014557-614557-625274(Top 95%)14511(Top 96%)14511(Top 275%)
21M21.00 mi1.00 mi25184-2014559-214559-225286(Top 95%)14513(Top 96%)14513(Top 275%)
35K21.75 mi0.75 mi25225-4114569-1014569-1025718(Top 97%)14691(Top 97%)14691(Top 278%)
23M23.00 mi1.25 mi25295-7014588-1914588-1925943(Top 97%)14805(Top 98%)14805(Top 280%)
24M24.00 mi1.00 mi25361-6614619-3114619-3126058(Top 98%)14842(Top 98%)14842(Top 281%)
40K24.85 mi0.85 mi25407-4614639-2014639-2026047(Top 98%)14828(Top 98%)14828(Top 281%)
25.2M25.20 mi0.35 mi25419-1214643-414643-425693(Top 97%)14643(Top 96%)14643(Top 277%)
Finish26.22 mi1.02 mi25456-3714651-814651-825900(Top 97%)14757(Top 97%)14757(Top 279%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 93%
×21stories
+97ft-345ft

Overall

24833

Males

14438

M18-39

14438

5K→10K

3.1 - 6.2 mi

Top 94%
×5stories
+79ft-138ft

Overall

24924

Males

14504

M18-39

14504

10K→15K

6.2 - 9.3 mi

Top 93%
×3stories
+67ft-78ft

Overall

24833

Males

14438

M18-39

14438

15K→20K

9.3 - 12.4 mi

Top 93%
×5stories
+106ft-86ft

Overall

24793

Males

14411

M18-39

14411

20K→Half

12.4 - 13.1 mi

Top 95%
×2stories
+19ft-37ft

Overall

25287

Males

14601

M18-39

14601

Half→25K

13.1 - 15.5 mi

Top 93%
×4stories
+66ft-88ft

Overall

24869

Males

14408

M18-39

14408

25K→30K

15.5 - 18.6 mi

Top 96%
×9stories
+181ft-148ft

Overall

25550

Males

14658

M18-39

14658

30K→20M

18.6 - 20.0 mi

Top 95%
×5stories
+64ft-50ft

Overall

25274

Males

14511

M18-39

14511

20M→21M

20.0 - 21.0 mi

Top 95%
×8stories
+106ft-24ft

Overall

25286

Males

14513

M18-39

14513

21M→35K

21.0 - 21.8 mi

Top 97%
×7stories
+17ft-86ft

Overall

25718

Males

14691

M18-39

14691

35K→23M

21.8 - 23.0 mi

Top 97%
×5stories
+23ft-63ft

Overall

25943

Males

14805

M18-39

14805

23M→24M

23.0 - 24.0 mi

Top 98%
×6stories
+12ft-82ft

Overall

26058

Males

14842

M18-39

14842

24M→40K

24.0 - 24.9 mi

Top 98%
×1story
+6ft-20ft

Overall

26047

Males

14828

M18-39

14828

40K→25.2M

24.9 - 25.2 mi

Top 97%
×1story
+13ft-16ft

Overall

25693

Males

14643

M18-39

14643

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×2stories
+22ft-21ft

Overall

25900

Males

14757

M18-39

14757

Passing Analysis

Category:
Athletes Passed
741
Passed By
1000
Net Change
-259
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25197
5K → 10K262107+155#25197#25042
10K → 15K15370+83#25042#24959
15K → 20K11882+36#24959#24923
20K → Half1133-22#24923#24945
Half → 25K7269+3#24945#24942
25K → 30K30222-192#24942#25134
30K → 20M3060-30#25134#25164
20M → 21M2545-20#25164#25184
21M → 35K1253-41#25184#25225
35K → 23M676-70#25225#25295
23M → 24M975-66#25295#25361
24M → 40K551-46#25361#25407
40K → 25.2M113-12#25407#25419
25.2M → Finish744-37#25419#25456
TOTALS7411000-259
📊

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