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BOSTON MARATHON 2023

Xinwei Qian

Bib: 2327•M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 12%
Gender (Male)
#0 / 15176
Top 20%
Division (M18-39)
#0 / 5285
Top 42%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:49
Rank: #3661
Start → 5K
6:42/mi
20:49 split
10K· 6.21 mi
41:20
Rank: #3549 (+112)
5K → 10K
6:36/mi
20:31 split
15K· 9.32 mi
1:01:52
Rank: #3460 (+89)
10K → 15K
6:37/mi
20:32 split
20K· 12.43 mi
1:22:40
Rank: #3461 (-1)
15K → 20K
6:42/mi
20:48 split
Half· 13.11 mi
1:27:15
Rank: #3502 (-41)
20K → Half
6:43/mi
4:35 split
25K· 15.53 mi
1:43:35
Rank: #3496 (+6)
Half → 25K
6:44/mi
16:20 split
30K· 18.64 mi
2:05:09
Rank: #3553 (-57)
25K → 30K
6:56/mi
21:34 split
20M
2:14:31
Rank: #3501 (+52)
30K → 20M
6:54/mi
9:22 split
21M
2:21:47
Rank: #3461 (+40)
20M → 21M
7:16/mi
7:16 split
35K· 21.75 mi
2:26:51
Rank: #3471 (-10)
21M → 35K
6:46/mi
5:04 split
23M
2:35:26
Rank: #3396 (+75)
35K → 23M
6:51/mi
8:35 split
24M
2:41:59
Rank: #3321 (+75)
23M → 24M
6:33/mi
6:33 split
40K· 24.85 mi
2:47:42
Rank: #3243 (+78)
24M → 40K
6:41/mi
5:43 split
25.2M
2:50:12
Rank: #3228 (+15)
40K → 25.2M
7:15/mi
2:30 split
Finish· 26.22 mi
2:56:54
Rank: #3165 (+63)
25.2M → Finish
6:34/mi
6:42 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:15
Pace6:39 /mi
2nd Half
Distance13.11 mi
Time1:29:39
Pace6:50 /mi
📊Positive Split: 2.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:5420:496:4220:49
6:42
-
10K
6.21 mi10:42:2541:206:3920:31
6:36
-0:06
15K
9.32 mi11:02:571:01:526:3820:32
6:37
+0:01
20K
12.43 mi11:23:451:22:406:3920:48
6:42
+0:05
Half
13.11 mi11:28:201:27:156:394:35
6:43
+0:01
25K
15.53 mi11:44:401:43:356:4016:20
6:44
+0:01
30K
18.64 mi12:06:142:05:096:4321:34
6:56
+0:12
20M
20.00 mi12:15:362:14:316:449:22
6:54
-0:02
21M
21.00 mi12:22:522:21:476:457:16
7:16
+0:22
35K
21.75 mi12:27:562:26:516:455:04
6:46
-0:30
23M
23.00 mi12:36:312:35:266:458:35
6:51
+0:05
24M
24.00 mi12:43:042:41:596:456:33
6:33
-0:18
40K
24.85 mi12:48:472:47:426:455:43
6:41
+0:08
25.2M
25.20 mi12:51:172:50:126:452:30
7:15
+0:34
Finish
26.22 mi12:57:592:56:546:456:42
6:34
-0:41

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

6:33 /mi

Average Pace

6:45 /mi

Slowest Pace

7:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47:08

94% of race

Time at Steady Pace

9:46

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:45 /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 mi10:21:5420:496:4220:49
6:42
#3661
10K
6.21 mi10:42:2541:206:3920:31
6:36
#3549
15K
9.32 mi11:02:571:01:526:3820:32
6:37
#3460
20K
12.43 mi11:23:451:22:406:3920:48
6:42
#3461
Half
13.11 mi11:28:201:27:156:394:35
6:43
#3502
25K
15.53 mi11:44:401:43:356:4016:20
6:44
#3496
30K
18.64 mi12:06:142:05:096:4321:34
6:56
#3553
20M
20.00 mi12:15:362:14:316:449:22
6:54
#3501
21M
21.00 mi12:22:522:21:476:457:16
7:16
#3461
35K
21.75 mi12:27:562:26:516:455:04
6:46
#3471
23M
23.00 mi12:36:312:35:266:458:35
6:51
#3396
24M
24.00 mi12:43:042:41:596:456:33
6:33
#3321
40K
24.85 mi12:48:472:47:426:455:43
6:41
#3243
25.2M
25.20 mi12:51:172:50:126:452:30
7:15
#3228
Finish
26.22 mi12:57:592:56:546:456:42
6:34
#3165
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3661344534453354(Top 13%)3183(Top 21%)3183(Top 60%)
10K6.21 mi3.10 mi3549+1123350+953350+953515(Top 13%)3328(Top 22%)3328(Top 63%)
15K9.32 mi3.11 mi3460+893278+723278+723354(Top 13%)3183(Top 21%)3183(Top 60%)
20K12.43 mi3.11 mi3461-13280-23280-23534(Top 13%)3343(Top 22%)3343(Top 63%)
Half13.11 mi0.68 mi3502-413317-373317-374424(Top 17%)4116(Top 27%)4116(Top 78%)
25K15.53 mi2.42 mi3496+63316+13316+13630(Top 14%)3419(Top 23%)3419(Top 65%)
30K18.64 mi3.11 mi3553-573363-473363-473933(Top 15%)3676(Top 24%)3676(Top 70%)
20M20.00 mi1.36 mi3501+523311+523311+523358(Top 13%)3141(Top 21%)3141(Top 59%)
21M21.00 mi1.00 mi3461+403277+343277+343437(Top 13%)3195(Top 21%)3195(Top 60%)
35K21.75 mi0.75 mi3471-103288-113288-113965(Top 15%)3640(Top 24%)3640(Top 69%)
23M23.00 mi1.25 mi3396+753216+723216+722959(Top 11%)2760(Top 18%)2760(Top 52%)
24M24.00 mi1.00 mi3321+753144+723144+722326(Top 9%)2177(Top 14%)2177(Top 41%)
40K24.85 mi0.85 mi3243+783069+753069+752293(Top 9%)2131(Top 14%)2131(Top 40%)
25.2M25.20 mi0.35 mi3228+153054+153054+152709(Top 10%)2495(Top 16%)2495(Top 47%)
Finish26.22 mi1.02 mi3165+632995+592995+592852(Top 11%)2589(Top 17%)2589(Top 49%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21story building
+97ft-345ft

Overall

3354

Males

3183

M18-39

3183

5K→10K

3.1 - 6.2 mi

Top 13%
×5story building
+79ft-138ft

Overall

3515

Males

3328

M18-39

3328

10K→15K

6.2 - 9.3 mi

Top 13%
×3story building
+67ft-78ft

Overall

3354

Males

3183

M18-39

3183

15K→20K

9.3 - 12.4 mi

Top 13%
×5story building
+106ft-86ft

Overall

3534

Males

3343

M18-39

3343

20K→Half

12.4 - 13.1 mi

Top 17%
×2story building
+19ft-37ft

Overall

4424

Males

4116

M18-39

4116

Half→25K

13.1 - 15.5 mi

Top 14%
×4story building
+66ft-88ft

Overall

3630

Males

3419

M18-39

3419

25K→30K

15.5 - 18.6 mi

Top 15%
×9story building
+181ft-148ft

Overall

3933

Males

3676

M18-39

3676

30K→20M

18.6 - 20.0 mi

Top 13%
×5story building
+64ft-50ft

Overall

3358

Males

3141

M18-39

3141

20M→21M

20.0 - 21.0 mi

Top 13%
×8story building
+106ft-24ft

Overall

3437

Males

3195

M18-39

3195

21M→35K

21.0 - 21.8 mi

Top 15%
×7story building
+17ft-86ft

Overall

3965

Males

3640

M18-39

3640

35K→23M

21.8 - 23.0 mi

Top 11%
×5story building
+23ft-63ft

Overall

2959

Males

2760

M18-39

2760

23M→24M

23.0 - 24.0 mi

Top 9%
×6story building
+12ft-82ft

Overall

2326

Males

2177

M18-39

2177

24M→40K

24.0 - 24.9 mi

Top 9%
×1story
+6ft-20ft

Overall

2293

Males

2131

M18-39

2131

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2709

Males

2495

M18-39

2495

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2story building
+22ft-21ft

Overall

2852

Males

2589

M18-39

2589

Passing Analysis

Category:
Athletes Passed
1219
Passed By
723
Net Change
+496
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3661
5K → 10K256144+112#3661#3549
10K → 15K14859+89#3549#3460
15K → 20K8081-1#3460#3461
20K → Half748-41#3461#3502
Half → 25K8276+6#3502#3496
25K → 30K84141-57#3496#3553
30K → 20M8533+52#3553#3501
20M → 21M7131+40#3501#3461
21M → 35K3545-10#3461#3471
35K → 23M9924+75#3471#3396
23M → 24M8510+75#3396#3321
24M → 40K868+78#3321#3243
40K → 25.2M2611+15#3243#3228
25.2M → Finish7512+63#3228#3165
TOTALS1219723+496
📊

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