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BOSTON MARATHON 2023

Jiaolu Wang

Bib: 8860•M

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 33%
Gender (Male)
#0 / 15176
Top 48%
Masters (Masters Men)
#0 / 9891
Top 36%
Division (M45-49)
#0 / 2252
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
6:43/mi
20:51
↑ 97↓ 3451.5%
10K· 6.21 mi
6:52/mi
42:10
↑ 79↓ 1380.4%
15K· 9.32 mi
6:58/mi
1:03:48
↑ 67↓ 78
20K· 12.43 mi
7:09/mi
1:26:02
↑ 106↓ 860.1%
Half· 13.11 mi
7:15/mi
1:30:59
↑ 19↓ 370.5%
25K· 15.53 mi
7:38/mi
1:49:29
↑ 66↓ 880.2%
30K· 18.64 mi
8:12/mi
2:14:58
↑ 181↓ 1480.2%
20M
8:28/mi
2:26:29
↑ 64↓ 500.2%
21M
9:12/mi
2:35:41
↑ 106↓ 241.6%
35K· 21.75 mi
7:49/mi
2:41:32
↑ 17↓ 861.7%
23M
8:16/mi
2:51:53
↑ 23↓ 630.6%
24M
8:18/mi
3:00:11
↓ 821.3%
40K· 24.85 mi
8:24/mi
3:07:22
↓ 200.3%
25.2M
9:31/mi
3:10:39
↑ 13↓ 160.2%
Finish· 26.22 mi
8:17/mi
3:19:05
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:59
Pace6:56 /mi
2nd Half
Distance13.11 mi
Time1:48:06
Pace8:15 /mi
📊Positive Split: 18.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:1420:516:4320:51
6:43
-
10K
6.21 mi11:07:3342:106:4721:19
6:52
+0:09
15K
9.32 mi11:29:111:03:486:5121:38
6:58
+0:06
20K
12.43 mi11:51:251:26:026:5522:14
7:09
+0:11
Half
13.11 mi11:56:221:30:596:564:57
7:15
+0:06
25K
15.53 mi12:14:521:49:297:0318:30
7:38
+0:23
30K
18.64 mi12:40:212:14:587:1425:29
8:12
+0:34
20M
20.00 mi12:51:522:26:297:1911:31
8:28
+0:16
21M
21.00 mi13:01:042:35:417:259:12
9:12
+0:44
35K
21.75 mi13:06:552:41:327:265:51
7:49
-1:23
23M
23.00 mi13:17:162:51:537:2810:21
8:16
+0:27
24M
24.00 mi13:25:343:00:117:308:18
8:18
+0:02
40K
24.85 mi13:32:453:07:227:327:11
8:24
+0:06
25.2M
25.20 mi13:36:023:10:397:343:17
9:31
+1:07
Finish
26.22 mi13:44:283:19:057:368:26
8:17
-1:14

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

6:43 /mi

Average Pace

7:36 /mi

Slowest Pace

9:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:49:29

55% of race

Time at Steady Pace

1:17:07

39% of race

Time at Slower Pace

12:29

6% of race

Average Pace: 7:36 /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 mi10:46:1420:516:4320:51
6:43
#3790
10K
6.21 mi11:07:3342:106:4721:19
6:52
#4853
15K
9.32 mi11:29:111:03:486:5121:38
6:58
#5428
20K
12.43 mi11:51:251:26:026:5522:14
7:09
#5850
Half
13.11 mi11:56:221:30:596:564:57
7:15
#5997
25K
15.53 mi12:14:521:49:297:0318:30
7:38
#6490
30K
18.64 mi12:40:212:14:587:1425:29
8:12
#7241
20M
20.00 mi12:51:522:26:297:1911:31
8:28
#7620
21M
21.00 mi13:01:042:35:417:259:12
9:12
#7979
35K
21.75 mi13:06:552:41:327:265:51
7:49
#8076
23M
23.00 mi13:17:162:51:537:2810:21
8:16
#8251
24M
24.00 mi13:25:343:00:117:308:18
8:18
#8453
40K
24.85 mi13:32:453:07:227:327:11
8:24
#8615
25.2M
25.20 mi13:36:023:10:397:343:17
9:31
#8712
Finish
26.22 mi13:44:283:19:057:368:26
8:17
#8913
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi3790356435646343(Top 24%)5731(Top 38%)5731(Top 254%)
10K6.21 mi3.10 mi4853-10634512-9484512-9485851(Top 22%)5344(Top 35%)5344(Top 237%)
15K9.32 mi3.11 mi5428-5755015-5035015-5036343(Top 24%)5731(Top 38%)5731(Top 254%)
20K12.43 mi3.11 mi5850-4225364-3495364-3496845(Top 26%)6098(Top 40%)6098(Top 271%)
Half13.11 mi0.68 mi5997-1475473-1095473-1098240(Top 31%)7054(Top 46%)7054(Top 313%)
25K15.53 mi2.42 mi6490-4935844-3715844-3719765(Top 37%)7852(Top 52%)7852(Top 349%)
30K18.64 mi3.11 mi7241-7516393-5496393-54912348(Top 46%)8945(Top 59%)8945(Top 397%)
20M20.00 mi1.36 mi7620-3796613-2206613-22013456(Top 51%)9327(Top 61%)9327(Top 414%)
21M21.00 mi1.00 mi7979-3596830-2176830-21714443(Top 54%)9683(Top 64%)9683(Top 430%)
35K21.75 mi0.75 mi8076-976877-476877-4710752(Top 40%)7975(Top 53%)7975(Top 354%)
23M23.00 mi1.25 mi8251-1756965-886965-8811605(Top 44%)8279(Top 55%)8279(Top 368%)
24M24.00 mi1.00 mi8453-2027070-1057070-10513220(Top 50%)8954(Top 59%)8954(Top 398%)
40K24.85 mi0.85 mi8615-1627151-817151-8112671(Top 48%)8606(Top 57%)8606(Top 382%)
25.2M25.20 mi0.35 mi8712-977194-437194-4315198(Top 57%)9739(Top 64%)9739(Top 432%)
Finish26.22 mi1.02 mi8913-2017297-1037297-10313904(Top 52%)9191(Top 61%)9191(Top 408%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21story building
+97ft-345ft

Overall

6343

Males

5731

M45-49

5731

5K→10K

3.1 - 6.2 mi

Top 22%
×5story building
+79ft-138ft

Overall

5851

Males

5344

M45-49

5344

10K→15K

6.2 - 9.3 mi

Top 24%
×3story building
+67ft-78ft

Overall

6343

Males

5731

M45-49

5731

15K→20K

9.3 - 12.4 mi

Top 26%
×5story building
+106ft-86ft

Overall

6845

Males

6098

M45-49

6098

20K→Half

12.4 - 13.1 mi

Top 31%
×2story building
+19ft-37ft

Overall

8240

Males

7054

M45-49

7054

Half→25K

13.1 - 15.5 mi

Top 37%
×4story building
+66ft-88ft

Overall

9765

Males

7852

M45-49

7852

25K→30K

15.5 - 18.6 mi

Top 46%
×9story building
+181ft-148ft

Overall

12348

Males

8945

M45-49

8945

30K→20M

18.6 - 20.0 mi

Top 51%
×5story building
+64ft-50ft

Overall

13456

Males

9327

M45-49

9327

20M→21M

20.0 - 21.0 mi

Top 54%
×8story building
+106ft-24ft

Overall

14443

Males

9683

M45-49

9683

21M→35K

21.0 - 21.8 mi

Top 40%
×7story building
+17ft-86ft

Overall

10752

Males

7975

M45-49

7975

35K→23M

21.8 - 23.0 mi

Top 44%
×5story building
+23ft-63ft

Overall

11605

Males

8279

M45-49

8279

23M→24M

23.0 - 24.0 mi

Top 50%
×6story building
+12ft-82ft

Overall

13220

Males

8954

M45-49

8954

24M→40K

24.0 - 24.9 mi

Top 48%
×1story
+6ft-20ft

Overall

12671

Males

8606

M45-49

8606

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

15198

Males

9739

M45-49

9739

25.2M→Finish

25.2 - 26.2 mi

Top 52%
×2story building
+22ft-21ft

Overall

13904

Males

9191

M45-49

9191

Passing Analysis

Category:
Athletes Passed
245
Passed By
5368
Net Change
-5123
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3790
5K → 10K111074-1063#3790#4853
10K → 15K20595-575#4853#5428
15K → 20K25447-422#5428#5850
20K → Half3150-147#5850#5997
Half → 25K17510-493#5997#6490
25K → 30K14765-751#6490#7241
30K → 20M18397-379#7241#7620
20M → 21M4363-359#7620#7979
21M → 35K21118-97#7979#8076
35K → 23M40215-175#8076#8251
23M → 24M25227-202#8251#8453
24M → 40K26188-162#8453#8615
40K → 25.2M9106-97#8615#8712
25.2M → Finish12213-201#8712#8913
TOTALS2455368-5123
📊

Passing Visuals

Category:
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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