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BOSTON MARATHON 2023

Joseph Christoffersen

Bib: 12431•M

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M50-54)
#0 / 2052
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:09
Rank: #9231
Start → 5K
23:09 | 7:27/mi
10K· 6.21 mi
45:47
Rank: #8953 (+278)
5K → 10K
22:38 | 7:17/mi
15K· 9.32 mi
1:09:04
Rank: #9278 (-325)
10K → 15K
23:17 | 7:30/mi
20K· 12.43 mi
1:33:29
Rank: #10029 (-751)
15K → 20K
24:25 | 7:52/mi
Half· 13.11 mi
1:39:04
Rank: #10336 (-307)
20K → Half
5:35 | 8:11/mi
25K· 15.53 mi
2:00:55
Rank: #12046 (-1710)
Half → 25K
21:51 | 9:01/mi
30K· 18.64 mi
2:29:35
Rank: #13471 (-1425)
25K → 30K
28:40 | 9:14/mi
20M
2:42:29
Rank: #14038 (-567)
30K → 20M
12:54 | 9:30/mi
21M
2:54:01
Rank: #14796 (-758)
20M → 21M
11:32 | 11:32/mi
35K· 21.75 mi
3:01:25
Rank: #15113 (-317)
21M → 35K
7:24 | 9:53/mi
23M
3:14:03
Rank: #15542 (-429)
35K → 23M
12:38 | 10:05/mi
24M
3:23:00
Rank: #15588 (-46)
23M → 24M
8:57 | 8:57/mi
40K· 24.85 mi
3:30:39
Rank: #15617 (-29)
24M → 40K
7:39 | 8:57/mi
25.2M
3:33:55
Rank: #15612 (+5)
40K → 25.2M
3:16 | 9:28/mi
Finish· 26.22 mi
3:42:22
Rank: #15538 (+74)
25.2M → Finish
8:27 | 8:18/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:04
Pace7:33 /mi
2nd Half
Distance13.11 mi
Time2:03:18
Pace9:24 /mi
📊Positive Split: 24.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:5023:097:2723:09
7:27
-
10K
6.21 mi11:13:2845:477:2222:38
7:17
-0:10
15K
9.32 mi11:36:451:09:047:2523:17
7:30
+0:13
20K
12.43 mi12:01:101:33:297:3124:25
7:52
+0:22
Half
13.11 mi12:06:451:39:047:335:35
8:11
+0:19
25K
15.53 mi12:28:362:00:557:4721:51
9:01
+0:50
30K
18.64 mi12:57:162:29:358:0128:40
9:14
+0:13
20M
20.00 mi13:10:102:42:298:0712:54
9:30
+0:16
21M
21.00 mi13:21:422:54:018:1711:32
11:32
+2:02
35K
21.75 mi13:29:063:01:258:217:24
9:53
-1:39
23M
23.00 mi13:41:443:14:038:2612:38
10:05
+0:12
24M
24.00 mi13:50:413:23:008:288:57
8:57
-1:08
40K
24.85 mi13:58:203:30:398:297:39
8:57
0:00
25.2M
25.20 mi14:01:363:33:558:293:16
9:28
+0:31
Finish
26.22 mi14:10:033:42:228:298:27
8:18
-1:10

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

7:17 /mi

Average Pace

8:29 /mi

Slowest Pace

11:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:47:31

48% of race

Time at Steady Pace

1:23:17

37% of race

Time at Slower Pace

31:34

14% of race

Average Pace: 8:29 /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 mi10:50:5023:097:2723:09
7:27
#9231
10K
6.21 mi11:13:2845:477:2222:38
7:17
#8953
15K
9.32 mi11:36:451:09:047:2523:17
7:30
#9278
20K
12.43 mi12:01:101:33:297:3124:25
7:52
#10029
Half
13.11 mi12:06:451:39:047:335:35
8:11
#10336
25K
15.53 mi12:28:362:00:557:4721:51
9:01
#12046
30K
18.64 mi12:57:162:29:358:0128:40
9:14
#13471
20M
20.00 mi13:10:102:42:298:0712:54
9:30
#14038
21M
21.00 mi13:21:422:54:018:1711:32
11:32
#14796
35K
21.75 mi13:29:063:01:258:217:24
9:53
#15113
23M
23.00 mi13:41:443:14:038:2612:38
10:05
#15542
24M
24.00 mi13:50:413:23:008:288:57
8:57
#15588
40K
24.85 mi13:58:203:30:398:297:39
8:57
#15617
25.2M
25.20 mi14:01:363:33:558:293:16
9:28
#15612
Finish
26.22 mi14:10:033:42:228:298:27
8:18
#15538
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi92317729772910130(Top 38%)8217(Top 54%)8217(Top 400%)
10K6.21 mi3.10 mi8953+2787552+1777552+1778766(Top 33%)7432(Top 49%)7432(Top 362%)
15K9.32 mi3.11 mi9278-3257735-1837735-18310130(Top 38%)8217(Top 54%)8217(Top 400%)
20K12.43 mi3.11 mi10029-7518176-4418176-44112241(Top 46%)9123(Top 60%)9123(Top 445%)
Half13.11 mi0.68 mi10336-3078330-1548330-15415628(Top 59%)10536(Top 69%)10536(Top 513%)
25K15.53 mi2.42 mi12046-17109064-7349064-73419000(Top 71%)11844(Top 78%)11844(Top 577%)
30K18.64 mi3.11 mi13471-14259630-5669630-56618273(Top 69%)11448(Top 75%)11448(Top 558%)
20M20.00 mi1.36 mi14038-5679834-2049834-20418814(Top 71%)11589(Top 76%)11589(Top 565%)
21M21.00 mi1.00 mi14796-75810117-28310117-28321923(Top 82%)12947(Top 85%)12947(Top 631%)
35K21.75 mi0.75 mi15113-31710208-9110208-9120956(Top 79%)12458(Top 82%)12458(Top 607%)
23M23.00 mi1.25 mi15542-42910329-12110329-12120233(Top 76%)12112(Top 80%)12112(Top 590%)
24M24.00 mi1.00 mi15588-4610331-210331-216981(Top 64%)10617(Top 70%)10617(Top 517%)
40K24.85 mi0.85 mi15617-2910342-1110342-1115835(Top 59%)10056(Top 66%)10056(Top 490%)
25.2M25.20 mi0.35 mi15612+510333+910333+915012(Top 56%)9688(Top 64%)9688(Top 472%)
Finish26.22 mi1.02 mi15538+7410290+4310290+4314050(Top 53%)9269(Top 61%)9269(Top 452%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21stories
+97ft-345ft

Overall

10130

Males

8217

M50-54

8217

5K→10K

3.1 - 6.2 mi

Top 33%
×5stories
+79ft-138ft

Overall

8766

Males

7432

M50-54

7432

10K→15K

6.2 - 9.3 mi

Top 38%
×3stories
+67ft-78ft

Overall

10130

Males

8217

M50-54

8217

15K→20K

9.3 - 12.4 mi

Top 46%
×5stories
+106ft-86ft

Overall

12241

Males

9123

M50-54

9123

20K→Half

12.4 - 13.1 mi

Top 59%
×2stories
+19ft-37ft

Overall

15628

Males

10536

M50-54

10536

Half→25K

13.1 - 15.5 mi

Top 71%
×4stories
+66ft-88ft

Overall

19000

Males

11844

M50-54

11844

25K→30K

15.5 - 18.6 mi

Top 69%
×9stories
+181ft-148ft

Overall

18273

Males

11448

M50-54

11448

30K→20M

18.6 - 20.0 mi

Top 71%
×5stories
+64ft-50ft

Overall

18814

Males

11589

M50-54

11589

20M→21M

20.0 - 21.0 mi

Top 82%
×8stories
+106ft-24ft

Overall

21923

Males

12947

M50-54

12947

21M→35K

21.0 - 21.8 mi

Top 79%
×7stories
+17ft-86ft

Overall

20956

Males

12458

M50-54

12458

35K→23M

21.8 - 23.0 mi

Top 76%
×5stories
+23ft-63ft

Overall

20233

Males

12112

M50-54

12112

23M→24M

23.0 - 24.0 mi

Top 64%
×6stories
+12ft-82ft

Overall

16981

Males

10617

M50-54

10617

24M→40K

24.0 - 24.9 mi

Top 59%
×1story
+6ft-20ft

Overall

15835

Males

10056

M50-54

10056

40K→25.2M

24.9 - 25.2 mi

Top 56%
×1story
+13ft-16ft

Overall

15012

Males

9688

M50-54

9688

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2stories
+22ft-21ft

Overall

14050

Males

9269

M50-54

9269

Passing Analysis

Category:
Athletes Passed
815
Passed By
7120
Net Change
-6307
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9231
5K → 10K424146+278#9231#8953
10K → 15K54379-325#8953#9278
15K → 20K28778-751#9278#10029
20K → Half1307-307#10029#10336
Half → 25K41714-1710#10336#12046
25K → 30K201445-1425#12046#13471
30K → 20M17584-567#13471#14038
20M → 21M4762-758#14038#14796
21M → 35K9326-317#14796#15113
35K → 23M23452-429#15113#15542
23M → 24M4995-46#15542#15588
24M → 40K5887-29#15588#15617
40K → 25.2M2621+5#15617#15612
25.2M → Finish9824+74#15612#15538
TOTALS8157120-6307
📊

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