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BOSTON MARATHON 2023

Fanxiu Zhu

Bib: 15496•M

FL

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

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
7:58/mi
24:45
↑ 97↓ 3451.5%
10K· 6.21 mi
8:00/mi
49:36
↑ 79↓ 1380.4%
15K· 9.32 mi
7:57/mi
1:14:17
↑ 67↓ 78
20K· 12.43 mi
7:59/mi
1:39:06
↑ 106↓ 860.1%
Half· 13.11 mi
7:55/mi
1:44:30
↑ 19↓ 370.5%
25K· 15.53 mi
8:06/mi
2:04:08
↑ 66↓ 880.2%
30K· 18.64 mi
8:16/mi
2:29:49
↑ 181↓ 1480.2%
20M
8:22/mi
2:41:11
↑ 64↓ 500.2%
21M
9:01/mi
2:50:12
↑ 106↓ 241.6%
35K· 21.75 mi
8:23/mi
2:56:28
↑ 17↓ 861.7%
23M
8:33/mi
3:07:10
↑ 23↓ 630.6%
24M
8:20/mi
3:15:30
↓ 821.3%
40K· 24.85 mi
8:18/mi
3:22:36
↓ 200.3%
25.2M
8:59/mi
3:25:42
↑ 13↓ 160.2%
Finish· 26.22 mi
8:12/mi
3:34:03
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:30
Pace7:58 /mi
2nd Half
Distance13.11 mi
Time1:49:33
Pace8:21 /mi
📊Positive Split: 4.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:4624:457:5824:45
7:58
-
10K
6.21 mi11:19:3749:367:5924:51
8:00
+0:02
15K
9.32 mi11:44:181:14:177:5824:41
7:57
-0:03
20K
12.43 mi12:09:071:39:067:5824:49
7:59
+0:02
Half
13.11 mi12:14:311:44:307:585:24
7:55
-0:04
25K
15.53 mi12:34:092:04:087:5919:38
8:06
+0:11
30K
18.64 mi12:59:502:29:498:0225:41
8:16
+0:10
20M
20.00 mi13:11:122:41:118:0411:22
8:22
+0:06
21M
21.00 mi13:20:132:50:128:069:01
9:01
+0:39
35K
21.75 mi13:26:292:56:288:076:16
8:23
-0:38
23M
23.00 mi13:37:113:07:108:0810:42
8:33
+0:10
24M
24.00 mi13:45:313:15:308:098:20
8:20
-0:13
40K
24.85 mi13:52:373:22:368:097:06
8:18
-0:02
25.2M
25.20 mi13:55:433:25:428:103:06
8:59
+0:41
Finish
26.22 mi14:04:043:34:038:108:21
8:12
-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

7:55 /mi

Average Pace

8:10 /mi

Slowest Pace

9:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:21:56

94% of race

Time at Steady Pace

12:07

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:10 /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 mi10:54:4624:457:5824:45
7:58
#13756
10K
6.21 mi11:19:3749:367:5924:51
8:00
#14262
15K
9.32 mi11:44:181:14:177:5824:41
7:57
#14135
20K
12.43 mi12:09:071:39:067:5824:49
7:59
#13895
Half
13.11 mi12:14:311:44:307:585:24
7:55
#13872
25K
15.53 mi12:34:092:04:087:5919:38
8:06
#13791
30K
18.64 mi12:59:502:29:498:0225:41
8:16
#13571
20M
20.00 mi13:11:122:41:118:0411:22
8:22
#13494
21M
21.00 mi13:20:132:50:128:069:01
9:01
#13492
35K
21.75 mi13:26:292:56:288:076:16
8:23
#13515
23M
23.00 mi13:37:113:07:108:0810:42
8:33
#13502
24M
24.00 mi13:45:313:15:308:098:20
8:20
#13466
40K
24.85 mi13:52:373:22:368:097:06
8:18
#13381
25.2M
25.20 mi13:55:433:25:428:103:06
8:59
#13351
Finish
26.22 mi14:04:043:34:038:108:21
8:12
#13348
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi137569860986013934(Top 52%)9870(Top 65%)9870(Top 481%)
10K6.21 mi3.10 mi14262-50610038-17810038-17814789(Top 56%)10233(Top 67%)10233(Top 499%)
15K9.32 mi3.11 mi14135+1279973+659973+6513934(Top 52%)9870(Top 65%)9870(Top 481%)
20K12.43 mi3.11 mi13895+2409857+1169857+11613304(Top 50%)9579(Top 63%)9579(Top 467%)
Half13.11 mi0.68 mi13872+239846+119846+1113631(Top 51%)9741(Top 64%)9741(Top 475%)
25K15.53 mi2.42 mi13791+819792+549792+5413482(Top 51%)9551(Top 63%)9551(Top 465%)
30K18.64 mi3.11 mi13571+2209671+1219671+12112794(Top 48%)9148(Top 60%)9148(Top 446%)
20M20.00 mi1.36 mi13494+779625+469625+4612775(Top 48%)9032(Top 60%)9032(Top 440%)
21M21.00 mi1.00 mi13492+29606+199606+1913480(Top 51%)9258(Top 61%)9258(Top 451%)
35K21.75 mi0.75 mi13515-239604+29604+214537(Top 55%)9655(Top 64%)9655(Top 471%)
23M23.00 mi1.25 mi13502+139568+369568+3613490(Top 51%)9138(Top 60%)9138(Top 445%)
24M24.00 mi1.00 mi13466+369529+399529+3913416(Top 50%)9058(Top 60%)9058(Top 441%)
40K24.85 mi0.85 mi13381+859472+579472+5712043(Top 45%)8340(Top 55%)8340(Top 406%)
25.2M25.20 mi0.35 mi13351+309449+239449+2312417(Top 47%)8480(Top 56%)8480(Top 413%)
Finish26.22 mi1.02 mi13348+39428+219428+2113374(Top 50%)8959(Top 59%)8959(Top 437%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21story building
+97ft-345ft

Overall

13934

Males

9870

M50-54

9870

5K→10K

3.1 - 6.2 mi

Top 56%
×5story building
+79ft-138ft

Overall

14789

Males

10233

M50-54

10233

10K→15K

6.2 - 9.3 mi

Top 52%
×3story building
+67ft-78ft

Overall

13934

Males

9870

M50-54

9870

15K→20K

9.3 - 12.4 mi

Top 50%
×5story building
+106ft-86ft

Overall

13304

Males

9579

M50-54

9579

20K→Half

12.4 - 13.1 mi

Top 51%
×2story building
+19ft-37ft

Overall

13631

Males

9741

M50-54

9741

Half→25K

13.1 - 15.5 mi

Top 51%
×4story building
+66ft-88ft

Overall

13482

Males

9551

M50-54

9551

25K→30K

15.5 - 18.6 mi

Top 48%
×9story building
+181ft-148ft

Overall

12794

Males

9148

M50-54

9148

30K→20M

18.6 - 20.0 mi

Top 48%
×5story building
+64ft-50ft

Overall

12775

Males

9032

M50-54

9032

20M→21M

20.0 - 21.0 mi

Top 51%
×8story building
+106ft-24ft

Overall

13480

Males

9258

M50-54

9258

21M→35K

21.0 - 21.8 mi

Top 55%
×7story building
+17ft-86ft

Overall

14537

Males

9655

M50-54

9655

35K→23M

21.8 - 23.0 mi

Top 51%
×5story building
+23ft-63ft

Overall

13490

Males

9138

M50-54

9138

23M→24M

23.0 - 24.0 mi

Top 50%
×6story building
+12ft-82ft

Overall

13416

Males

9058

M50-54

9058

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

12043

Males

8340

M50-54

8340

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

12417

Males

8480

M50-54

8480

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2story building
+22ft-21ft

Overall

13374

Males

8959

M50-54

8959

Passing Analysis

Category:
Athletes Passed
1848
Passed By
1440
Net Change
+408
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13756
5K → 10K111617-506#13756#14262
10K → 15K253126+127#14262#14135
15K → 20K30464+240#14135#13895
20K → Half4320+23#13895#13872
Half → 25K16180+81#13872#13791
25K → 30K29676+220#13791#13571
30K → 20M12750+77#13571#13494
20M → 21M9593+2#13494#13492
21M → 35K5174-23#13492#13515
35K → 23M9784+13#13515#13502
23M → 24M9054+36#13502#13466
24M → 40K10823+85#13466#13381
40K → 25.2M4414+30#13381#13351
25.2M → Finish6865+3#13351#13348
TOTALS18481440+408
📊

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