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BOSTON MARATHON 2023

Christoffer Johnston

Bib: 1014•M

NJ

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 4%
Gender (Male)
#0 / 15176
Top 7%
Division (M18-39)
#0 / 5285
Top 16%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:58
Rank: #911
Start → 5K
18:58 | 6:06/mi
10K· 6.21 mi
37:48
Rank: #930 (-19)
5K → 10K
18:50 | 6:04/mi
15K· 9.32 mi
56:46
Rank: #937 (-7)
10K → 15K
18:58 | 6:06/mi
20K· 12.43 mi
1:15:58
Rank: #943 (-6)
15K → 20K
19:12 | 6:11/mi
Half· 13.11 mi
1:20:09
Rank: #950 (-7)
20K → Half
4:11 | 6:08/mi
25K· 15.53 mi
1:35:14
Rank: #953 (-3)
Half → 25K
15:05 | 6:13/mi
30K· 18.64 mi
1:55:10
Rank: #960 (-7)
25K → 30K
19:56 | 6:25/mi
20M
2:04:01
Rank: #981 (-21)
30K → 20M
8:51 | 6:31/mi
21M
2:11:02
Rank: #1007 (-26)
20M → 21M
7:01 | 7:01/mi
35K· 21.75 mi
2:15:43
Rank: #1010 (-3)
21M → 35K
4:41 | 6:16/mi
23M
2:23:53
Rank: #1020 (-10)
35K → 23M
8:10 | 6:31/mi
24M
2:30:14
Rank: #1019 (+1)
23M → 24M
6:21 | 6:21/mi
40K· 24.85 mi
2:35:49
Rank: #1023 (-4)
24M → 40K
5:35 | 6:32/mi
25.2M
2:38:19
Rank: #1040 (-17)
40K → 25.2M
2:30 | 7:15/mi
Finish· 26.22 mi
2:44:57
Rank: #1076 (-36)
25.2M → Finish
6:38 | 6:31/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:20:09
Pace6:07 /mi
2nd Half
Distance13.11 mi
Time1:24:48
Pace6:28 /mi
📊Positive Split: 5.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:1918:586:0618:58
6:06
-
10K
6.21 mi10:38:0937:486:0518:50
6:04
-0:02
15K
9.32 mi10:57:0756:466:0518:58
6:06
+0:02
20K
12.43 mi11:16:191:15:586:0719:12
6:11
+0:05
Half
13.11 mi11:20:301:20:096:074:11
6:08
-0:03
25K
15.53 mi11:35:351:35:146:0815:05
6:13
+0:05
30K
18.64 mi11:55:311:55:106:1119:56
6:25
+0:12
20M
20.00 mi12:04:222:04:016:128:51
6:31
+0:06
21M
21.00 mi12:11:232:11:026:147:01
7:01
+0:30
35K
21.75 mi12:16:042:15:436:144:41
6:16
-0:45
23M
23.00 mi12:24:142:23:536:158:10
6:31
+0:15
24M
24.00 mi12:30:352:30:146:166:21
6:21
-0:10
40K
24.85 mi12:36:102:35:496:165:35
6:32
+0:11
25.2M
25.20 mi12:38:402:38:196:172:30
7:15
+0:43
Finish
26.22 mi12:45:182:44:576:186:38
6:31
-0:44

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

6:04 /mi

Average Pace

6:18 /mi

Slowest Pace

7:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:35:26

94% of race

Time at Steady Pace

7:01

4% of race

Time at Slower Pace

2:30

2% of race

Average Pace: 6:17 /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 mi10:19:1918:586:0618:58
6:06
#911
10K
6.21 mi10:38:0937:486:0518:50
6:04
#930
15K
9.32 mi10:57:0756:466:0518:58
6:06
#937
20K
12.43 mi11:16:191:15:586:0719:12
6:11
#943
Half
13.11 mi11:20:301:20:096:074:11
6:08
#950
25K
15.53 mi11:35:351:35:146:0815:05
6:13
#953
30K
18.64 mi11:55:311:55:106:1119:56
6:25
#960
20M
20.00 mi12:04:222:04:016:128:51
6:31
#981
21M
21.00 mi12:11:232:11:026:147:01
7:01
#1007
35K
21.75 mi12:16:042:15:436:144:41
6:16
#1010
23M
23.00 mi12:24:142:23:536:158:10
6:31
#1020
24M
24.00 mi12:30:352:30:146:166:21
6:21
#1019
40K
24.85 mi12:36:102:35:496:165:35
6:32
#1023
25.2M
25.20 mi12:38:402:38:196:172:30
7:15
#1040
Finish
26.22 mi12:45:182:44:576:186:38
6:31
#1076
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi911857857981(Top 4%)932(Top 6%)932(Top 18%)
10K6.21 mi3.10 mi930-19879-22879-22969(Top 4%)919(Top 6%)919(Top 17%)
15K9.32 mi3.11 mi937-7887-8887-8981(Top 4%)932(Top 6%)932(Top 18%)
20K12.43 mi3.11 mi943-6894-7894-7997(Top 4%)947(Top 6%)947(Top 18%)
Half13.11 mi0.68 mi950-7901-7901-71113(Top 4%)1062(Top 7%)1062(Top 20%)
25K15.53 mi2.42 mi953-3904-3904-31052(Top 4%)1002(Top 7%)1002(Top 19%)
30K18.64 mi3.11 mi960-7911-7911-71255(Top 5%)1197(Top 8%)1197(Top 23%)
20M20.00 mi1.36 mi981-21931-20931-201473(Top 6%)1402(Top 9%)1402(Top 27%)
21M21.00 mi1.00 mi1007-26957-26957-262177(Top 8%)2055(Top 14%)2055(Top 39%)
35K21.75 mi0.75 mi1010-3960-3960-31415(Top 5%)1341(Top 9%)1341(Top 25%)
23M23.00 mi1.25 mi1020-10969-9969-91483(Top 6%)1408(Top 9%)1408(Top 27%)
24M24.00 mi1.00 mi1019+19699691490(Top 6%)1409(Top 9%)1409(Top 27%)
40K24.85 mi0.85 mi1023-4972-3972-31627(Top 6%)1530(Top 10%)1530(Top 29%)
25.2M25.20 mi0.35 mi1040-17989-17989-172635(Top 10%)2421(Top 16%)2421(Top 46%)
Finish26.22 mi1.02 mi1076-361025-361025-362497(Top 9%)2291(Top 15%)2291(Top 43%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21stories
+97ft-345ft

Overall

981

Males

932

M18-39

932

5K→10K

3.1 - 6.2 mi

Top 4%
×5stories
+79ft-138ft

Overall

969

Males

919

M18-39

919

10K→15K

6.2 - 9.3 mi

Top 4%
×3stories
+67ft-78ft

Overall

981

Males

932

M18-39

932

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

997

Males

947

M18-39

947

20K→Half

12.4 - 13.1 mi

Top 4%
×2stories
+19ft-37ft

Overall

1113

Males

1062

M18-39

1062

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

1052

Males

1002

M18-39

1002

25K→30K

15.5 - 18.6 mi

Top 5%
×9stories
+181ft-148ft

Overall

1255

Males

1197

M18-39

1197

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1473

Males

1402

M18-39

1402

20M→21M

20.0 - 21.0 mi

Top 8%
×8stories
+106ft-24ft

Overall

2177

Males

2055

M18-39

2055

21M→35K

21.0 - 21.8 mi

Top 5%
×7stories
+17ft-86ft

Overall

1415

Males

1341

M18-39

1341

35K→23M

21.8 - 23.0 mi

Top 6%
×5stories
+23ft-63ft

Overall

1483

Males

1408

M18-39

1408

23M→24M

23.0 - 24.0 mi

Top 6%
×6stories
+12ft-82ft

Overall

1490

Males

1409

M18-39

1409

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1627

Males

1530

M18-39

1530

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2635

Males

2421

M18-39

2421

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2stories
+22ft-21ft

Overall

2497

Males

2291

M18-39

2291

Passing Analysis

Category:
Athletes Passed
239
Passed By
404
Net Change
-165
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#911
5K → 10K3857-19#911#930
10K → 15K2734-7#930#937
15K → 20K3137-6#937#943
20K → Half18-7#943#950
Half → 25K1821-3#950#953
25K → 30K3441-7#953#960
30K → 20M1031-21#960#981
20M → 21M1238-26#981#1007
21M → 35K1114-3#1007#1010
35K → 23M1323-10#1010#1020
23M → 24M1615+1#1020#1019
24M → 40K1822-4#1019#1023
40K → 25.2M219-17#1023#1040
25.2M → Finish844-36#1040#1076
TOTALS239404-165
📊

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