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BOSTON MARATHON 2023

Jing Jiang

Bib: 4443•M

CT

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 31%
Gender (Male)
#0 / 15176
Top 46%
Masters (Masters Men)
#0 / 9891
Top 34%
Division (M45-49)
#0 / 2252
Top 45%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:14
Rank: #5015
Start → 5K
21:14 | 6:50/mi
10K· 6.21 mi
42:16
Rank: #4990 (+25)
5K → 10K
21:02 | 6:46/mi
15K· 9.32 mi
1:03:42
Rank: #5309 (-319)
10K → 15K
21:26 | 6:54/mi
20K· 12.43 mi
1:25:22
Rank: #5478 (-169)
15K → 20K
21:40 | 6:58/mi
Half· 13.11 mi
1:29:59
Rank: #5470 (+8)
20K → Half
4:37 | 6:46/mi
25K· 15.53 mi
1:46:42
Rank: #5360 (+110)
Half → 25K
16:43 | 6:54/mi
30K· 18.64 mi
2:09:36
Rank: #5545 (-185)
25K → 30K
22:54 | 7:22/mi
20M
2:20:44
Rank: #5871 (-326)
30K → 20M
11:08 | 8:12/mi
21M
2:30:11
Rank: #6296 (-425)
20M → 21M
9:27 | 9:27/mi
35K· 21.75 mi
2:36:43
Rank: #6588 (-292)
21M → 35K
6:32 | 8:44/mi
23M
2:48:15
Rank: #7106 (-518)
35K → 23M
11:32 | 9:13/mi
24M
2:57:25
Rank: #7576 (-470)
23M → 24M
9:10 | 9:10/mi
40K· 24.85 mi
3:05:15
Rank: #7941 (-365)
24M → 40K
7:50 | 9:10/mi
25.2M
3:08:32
Rank: #8070 (-129)
40K → 25.2M
3:17 | 9:31/mi
Finish· 26.22 mi
3:17:09
Rank: #8344 (-274)
25.2M → Finish
8:37 | 8:27/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:59
Pace6:52 /mi
2nd Half
Distance13.11 mi
Time1:47:10
Pace8:11 /mi
📊Positive Split: 19.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:5021:146:5021:14
6:50
-
10K
6.21 mi10:44:5242:166:4821:02
6:46
-0:04
15K
9.32 mi11:06:181:03:426:5021:26
6:54
+0:08
20K
12.43 mi11:27:581:25:226:5221:40
6:58
+0:04
Half
13.11 mi11:32:351:29:596:524:37
6:46
-0:12
25K
15.53 mi11:49:181:46:426:5216:43
6:54
+0:08
30K
18.64 mi12:12:122:09:366:5722:54
7:22
+0:28
20M
20.00 mi12:23:202:20:447:0211:08
8:12
+0:50
21M
21.00 mi12:32:472:30:117:099:27
9:27
+1:15
35K
21.75 mi12:39:192:36:437:126:32
8:44
-0:43
23M
23.00 mi12:50:512:48:157:1911:32
9:13
+0:29
24M
24.00 mi13:00:012:57:257:249:10
9:10
-0:03
40K
24.85 mi13:07:513:05:157:277:50
9:10
0:00
25.2M
25.20 mi13:11:083:08:327:293:17
9:31
+0:21
Finish
26.22 mi13:19:453:17:097:318:37
8:27
-1:04

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

7:31 /mi

Slowest Pace

9:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:36

66% of race

Time at Steady Pace

26:17

13% of race

Time at Slower Pace

41:16

21% of race

Average Pace: 7:31 /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 mi10:23:5021:146:5021:14
6:50
#5015
10K
6.21 mi10:44:5242:166:4821:02
6:46
#4990
15K
9.32 mi11:06:181:03:426:5021:26
6:54
#5309
20K
12.43 mi11:27:581:25:226:5221:40
6:58
#5478
Half
13.11 mi11:32:351:29:596:524:37
6:46
#5470
25K
15.53 mi11:49:181:46:426:5216:43
6:54
#5360
30K
18.64 mi12:12:122:09:366:5722:54
7:22
#5545
20M
20.00 mi12:23:202:20:447:0211:08
8:12
#5871
21M
21.00 mi12:32:472:30:117:099:27
9:27
#6296
35K
21.75 mi12:39:192:36:437:126:32
8:44
#6588
23M
23.00 mi12:50:512:48:157:1911:32
9:13
#7106
24M
24.00 mi13:00:012:57:257:249:10
9:10
#7576
40K
24.85 mi13:07:513:05:157:277:50
9:10
#7941
25.2M
25.20 mi13:11:083:08:327:293:17
9:31
#8070
Finish
26.22 mi13:19:453:17:097:318:37
8:27
#8344
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi5015465746575958(Top 22%)5433(Top 36%)5433(Top 241%)
10K6.21 mi3.10 mi4990+254629+284629+285009(Top 19%)4641(Top 31%)4641(Top 206%)
15K9.32 mi3.11 mi5309-3194916-2874916-2875958(Top 22%)5433(Top 36%)5433(Top 241%)
20K12.43 mi3.11 mi5478-1695055-1395055-1395840(Top 22%)5349(Top 35%)5349(Top 238%)
Half13.11 mi0.68 mi5470+85051+45051+45058(Top 19%)4690(Top 31%)4690(Top 208%)
25K15.53 mi2.42 mi5360+1104957+944957+944942(Top 19%)4575(Top 30%)4575(Top 203%)
30K18.64 mi3.11 mi5545-1855099-1425099-1426430(Top 24%)5683(Top 37%)5683(Top 252%)
20M20.00 mi1.36 mi5871-3265359-2605359-26011622(Top 44%)8527(Top 56%)8527(Top 379%)
21M21.00 mi1.00 mi6296-4255667-3085667-30815699(Top 59%)10217(Top 67%)10217(Top 454%)
35K21.75 mi0.75 mi6588-2925869-2025869-20216533(Top 62%)10485(Top 69%)10485(Top 466%)
23M23.00 mi1.25 mi7106-5186226-3576226-35717086(Top 64%)10721(Top 71%)10721(Top 476%)
24M24.00 mi1.00 mi7576-4706518-2926518-29217896(Top 67%)11014(Top 73%)11014(Top 489%)
40K24.85 mi0.85 mi7941-3656733-2156733-21516883(Top 63%)10519(Top 69%)10519(Top 467%)
25.2M25.20 mi0.35 mi8070-1296801-686801-6815196(Top 57%)9737(Top 64%)9737(Top 432%)
Finish26.22 mi1.02 mi8344-2746947-1466947-14615079(Top 57%)9753(Top 64%)9753(Top 433%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 22%
×21stories
+97ft-345ft

Overall

5958

Males

5433

M45-49

5433

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

5009

Males

4641

M45-49

4641

10K→15K

6.2 - 9.3 mi

Top 22%
×3stories
+67ft-78ft

Overall

5958

Males

5433

M45-49

5433

15K→20K

9.3 - 12.4 mi

Top 22%
×5stories
+106ft-86ft

Overall

5840

Males

5349

M45-49

5349

20K→Half

12.4 - 13.1 mi

Top 19%
×2stories
+19ft-37ft

Overall

5058

Males

4690

M45-49

4690

Half→25K

13.1 - 15.5 mi

Top 19%
×4stories
+66ft-88ft

Overall

4942

Males

4575

M45-49

4575

25K→30K

15.5 - 18.6 mi

Top 24%
×9stories
+181ft-148ft

Overall

6430

Males

5683

M45-49

5683

30K→20M

18.6 - 20.0 mi

Top 44%
×5stories
+64ft-50ft

Overall

11622

Males

8527

M45-49

8527

20M→21M

20.0 - 21.0 mi

Top 59%
×8stories
+106ft-24ft

Overall

15699

Males

10217

M45-49

10217

21M→35K

21.0 - 21.8 mi

Top 62%
×7stories
+17ft-86ft

Overall

16533

Males

10485

M45-49

10485

35K→23M

21.8 - 23.0 mi

Top 64%
×5stories
+23ft-63ft

Overall

17086

Males

10721

M45-49

10721

23M→24M

23.0 - 24.0 mi

Top 67%
×6stories
+12ft-82ft

Overall

17896

Males

11014

M45-49

11014

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

16883

Males

10519

M45-49

10519

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

15196

Males

9737

M45-49

9737

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2stories
+22ft-21ft

Overall

15079

Males

9753

M45-49

9753

Passing Analysis

Category:
Athletes Passed
624
Passed By
3953
Net Change
-3329
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5015
5K → 10K213188+25#5015#4990
10K → 15K34353-319#4990#5309
15K → 20K63232-169#5309#5478
20K → Half2416+8#5478#5470
Half → 25K14333+110#5470#5360
25K → 30K75260-185#5360#5545
30K → 20M10336-326#5545#5871
20M → 21M4429-425#5871#6296
21M → 35K7299-292#6296#6588
35K → 23M16534-518#6588#7106
23M → 24M7477-470#7106#7576
24M → 40K11376-365#7576#7941
40K → 25.2M6135-129#7941#8070
25.2M → Finish11285-274#8070#8344
TOTALS6243953-3329
📊

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