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BOSTON MARATHON 2023

Chris James

Bib: 7347•M

TN

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 17%
Gender (Male)
#0 / 15176
Top 28%
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
21:35
Rank: #5908
Start → 5K
21:35 | 6:57/mi
10K· 6.21 mi
42:47
Rank: #5698 (+210)
5K → 10K
21:12 | 6:49/mi
15K· 9.32 mi
1:03:48
Rank: #5418 (+280)
10K → 15K
21:01 | 6:46/mi
20K· 12.43 mi
1:25:07
Rank: #5310 (+108)
15K → 20K
21:19 | 6:52/mi
Half· 13.11 mi
1:29:44
Rank: #5292 (+18)
20K → Half
4:37 | 6:46/mi
25K· 15.53 mi
1:46:32
Rank: #5256 (+36)
Half → 25K
16:48 | 6:56/mi
30K· 18.64 mi
2:08:29
Rank: #5102 (+154)
25K → 30K
21:57 | 7:04/mi
20M
2:18:03
Rank: #5001 (+101)
30K → 20M
9:34 | 7:02/mi
21M
2:25:33
Rank: #4959 (+42)
20M → 21M
7:30 | 7:30/mi
35K· 21.75 mi
2:30:39
Rank: #4915 (+44)
21M → 35K
5:06 | 6:49/mi
23M
2:39:38
Rank: #4856 (+59)
35K → 23M
8:59 | 7:10/mi
24M
2:46:35
Rank: #4810 (+46)
23M → 24M
6:57 | 6:57/mi
40K· 24.85 mi
2:52:36
Rank: #4739 (+71)
24M → 40K
6:01 | 7:02/mi
25.2M
2:55:13
Rank: #4707 (+32)
40K → 25.2M
2:37 | 7:35/mi
Finish· 26.22 mi
3:02:09
Rank: #4647 (+60)
25.2M → Finish
6:56 | 6:48/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:44
Pace6:51 /mi
2nd Half
Distance13.11 mi
Time1:32:25
Pace7:03 /mi
📊Positive Split: 3.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:26:0321:356:5721:35
6:57
-
10K
6.21 mi10:47:1542:476:5321:12
6:49
-0:08
15K
9.32 mi11:08:161:03:486:5121:01
6:46
-0:03
20K
12.43 mi11:29:351:25:076:5121:19
6:52
+0:06
Half
13.11 mi11:34:121:29:446:514:37
6:46
-0:06
25K
15.53 mi11:51:001:46:326:5116:48
6:56
+0:10
30K
18.64 mi12:12:572:08:296:5421:57
7:04
+0:08
20M
20.00 mi12:22:312:18:036:549:34
7:02
-0:02
21M
21.00 mi12:30:012:25:336:567:30
7:30
+0:28
35K
21.75 mi12:35:072:30:396:565:06
6:49
-0:41
23M
23.00 mi12:44:062:39:386:568:59
7:10
+0:21
24M
24.00 mi12:51:032:46:356:566:57
6:57
-0:13
40K
24.85 mi12:57:042:52:366:576:01
7:02
+0:05
25.2M
25.20 mi12:59:412:55:136:572:37
7:35
+0:33
Finish
26.22 mi13:06:373:02:096:576:56
6:48
-0:47

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

6:46 /mi

Average Pace

6:57 /mi

Slowest Pace

7:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:52:02

94% of race

Time at Steady Pace

10:07

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:57 /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 mi10:26:0321:356:5721:35
6:57
#5908
10K
6.21 mi10:47:1542:476:5321:12
6:49
#5698
15K
9.32 mi11:08:161:03:486:5121:01
6:46
#5418
20K
12.43 mi11:29:351:25:076:5121:19
6:52
#5310
Half
13.11 mi11:34:121:29:446:514:37
6:46
#5292
25K
15.53 mi11:51:001:46:326:5116:48
6:56
#5256
30K
18.64 mi12:12:572:08:296:5421:57
7:04
#5102
20M
20.00 mi12:22:312:18:036:549:34
7:02
#5001
21M
21.00 mi12:30:012:25:336:567:30
7:30
#4959
35K
21.75 mi12:35:072:30:396:565:06
6:49
#4915
23M
23.00 mi12:44:062:39:386:568:59
7:10
#4856
24M
24.00 mi12:51:032:46:356:566:57
6:57
#4810
40K
24.85 mi12:57:042:52:366:576:01
7:02
#4739
25.2M
25.20 mi12:59:412:55:136:572:37
7:35
#4707
Finish
26.22 mi13:06:373:02:096:576:56
6:48
#4647
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5908541354134757(Top 18%)4433(Top 29%)4433(Top 84%)
10K6.21 mi3.10 mi5698+2105237+1765237+1765521(Top 21%)5081(Top 33%)5081(Top 96%)
15K9.32 mi3.11 mi5418+2805005+2325005+2324757(Top 18%)4433(Top 29%)4433(Top 84%)
20K12.43 mi3.11 mi5310+1084913+924913+925007(Top 19%)4640(Top 31%)4640(Top 88%)
Half13.11 mi0.68 mi5292+184898+154898+154957(Top 19%)4589(Top 30%)4589(Top 87%)
25K15.53 mi2.42 mi5256+364869+294869+295135(Top 19%)4738(Top 31%)4738(Top 90%)
30K18.64 mi3.11 mi5102+1544726+1434726+1434750(Top 18%)4384(Top 29%)4384(Top 83%)
20M20.00 mi1.36 mi5001+1014637+894637+894273(Top 16%)3944(Top 26%)3944(Top 75%)
21M21.00 mi1.00 mi4959+424593+444593+444570(Top 17%)4157(Top 27%)4157(Top 79%)
35K21.75 mi0.75 mi4915+444558+354558+354306(Top 16%)3941(Top 26%)3941(Top 75%)
23M23.00 mi1.25 mi4856+594501+574501+574660(Top 18%)4203(Top 28%)4203(Top 80%)
24M24.00 mi1.00 mi4810+464456+454456+454418(Top 17%)3993(Top 26%)3993(Top 76%)
40K24.85 mi0.85 mi4739+714393+634393+634033(Top 15%)3615(Top 24%)3615(Top 68%)
25.2M25.20 mi0.35 mi4707+324363+304363+304305(Top 16%)3775(Top 25%)3775(Top 71%)
Finish26.22 mi1.02 mi4647+604303+604303+604088(Top 15%)3609(Top 24%)3609(Top 68%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 18%
×21stories
+97ft-345ft

Overall

4757

Males

4433

M18-39

4433

5K→10K

3.1 - 6.2 mi

Top 21%
×5stories
+79ft-138ft

Overall

5521

Males

5081

M18-39

5081

10K→15K

6.2 - 9.3 mi

Top 18%
×3stories
+67ft-78ft

Overall

4757

Males

4433

M18-39

4433

15K→20K

9.3 - 12.4 mi

Top 19%
×5stories
+106ft-86ft

Overall

5007

Males

4640

M18-39

4640

20K→Half

12.4 - 13.1 mi

Top 19%
×2stories
+19ft-37ft

Overall

4957

Males

4589

M18-39

4589

Half→25K

13.1 - 15.5 mi

Top 19%
×4stories
+66ft-88ft

Overall

5135

Males

4738

M18-39

4738

25K→30K

15.5 - 18.6 mi

Top 18%
×9stories
+181ft-148ft

Overall

4750

Males

4384

M18-39

4384

30K→20M

18.6 - 20.0 mi

Top 16%
×5stories
+64ft-50ft

Overall

4273

Males

3944

M18-39

3944

20M→21M

20.0 - 21.0 mi

Top 17%
×8stories
+106ft-24ft

Overall

4570

Males

4157

M18-39

4157

21M→35K

21.0 - 21.8 mi

Top 16%
×7stories
+17ft-86ft

Overall

4306

Males

3941

M18-39

3941

35K→23M

21.8 - 23.0 mi

Top 18%
×5stories
+23ft-63ft

Overall

4660

Males

4203

M18-39

4203

23M→24M

23.0 - 24.0 mi

Top 17%
×6stories
+12ft-82ft

Overall

4418

Males

3993

M18-39

3993

24M→40K

24.0 - 24.9 mi

Top 15%
×1story
+6ft-20ft

Overall

4033

Males

3615

M18-39

3615

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4305

Males

3775

M18-39

3775

25.2M→Finish

25.2 - 26.2 mi

Top 15%
×2stories
+22ft-21ft

Overall

4088

Males

3609

M18-39

3609

Passing Analysis

Category:
Athletes Passed
1765
Passed By
504
Net Change
+1261
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5908
5K → 10K321111+210#5908#5698
10K → 15K30626+280#5698#5418
15K → 20K16254+108#5418#5310
20K → Half3012+18#5310#5292
Half → 25K10266+36#5292#5256
25K → 30K21662+154#5256#5102
30K → 20M12221+101#5102#5001
20M → 21M7937+42#5001#4959
21M → 35K5915+44#4959#4915
35K → 23M10041+59#4915#4856
23M → 24M6923+46#4856#4810
24M → 40K798+71#4810#4739
40K → 25.2M353+32#4739#4707
25.2M → Finish8525+60#4707#4647
TOTALS1765504+1261
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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