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BOSTON MARATHON 2023

Jun Xie

Bib: 3141•M

CA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:19
Rank: #5238
Start → 5K
21:19 | 6:52/mi
10K· 6.21 mi
42:39
Rank: #5541 (-303)
5K → 10K
21:20 | 6:52/mi
15K· 9.32 mi
1:04:24
Rank: #5920 (-379)
10K → 15K
21:45 | 7:00/mi
20K· 12.43 mi
1:27:06
Rank: #6407 (-487)
15K → 20K
22:42 | 7:18/mi
Half· 13.11 mi
1:32:08
Rank: #6518 (-111)
20K → Half
5:02 | 7:23/mi
25K· 15.53 mi
1:50:49
Rank: #6968 (-450)
Half → 25K
18:41 | 7:42/mi
30K· 18.64 mi
2:15:19
Rank: #7354 (-386)
25K → 30K
24:30 | 7:53/mi
20M
2:26:11
Rank: #7504 (-150)
30K → 20M
10:52 | 8:00/mi
21M
2:35:20
Rank: #7841 (-337)
20M → 21M
9:09 | 9:09/mi
35K· 21.75 mi
2:41:12
Rank: #7948 (-107)
21M → 35K
5:52 | 7:51/mi
23M
2:51:53
Rank: #8253 (-305)
35K → 23M
10:41 | 8:32/mi
24M
3:00:55
Rank: #8705 (-452)
23M → 24M
9:02 | 9:02/mi
40K· 24.85 mi
3:08:28
Rank: #8941 (-236)
24M → 40K
7:33 | 8:50/mi
25.2M
3:11:34
Rank: #8987 (-46)
40K → 25.2M
3:06 | 8:59/mi
Finish· 26.22 mi
3:21:25
Rank: #9561 (-574)
25.2M → Finish
9:51 | 9:40/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:08
Pace7:02 /mi
2nd Half
Distance13.11 mi
Time1:49:17
Pace8:20 /mi
📊Positive Split: 18.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:5221:196:5221:19
6:52
-
10K
6.21 mi10:44:1242:396:5221:20
6:52
0:00
15K
9.32 mi11:05:571:04:246:5521:45
7:00
+0:08
20K
12.43 mi11:28:391:27:067:0122:42
7:18
+0:18
Half
13.11 mi11:33:411:32:087:025:02
7:23
+0:05
25K
15.53 mi11:52:221:50:497:0818:41
7:42
+0:19
30K
18.64 mi12:16:522:15:197:1624:30
7:53
+0:11
20M
20.00 mi12:27:442:26:117:1910:52
8:00
+0:07
21M
21.00 mi12:36:532:35:207:249:09
9:09
+1:09
35K
21.75 mi12:42:452:41:127:255:52
7:51
-1:18
23M
23.00 mi12:53:262:51:537:2810:41
8:32
+0:41
24M
24.00 mi13:02:283:00:557:329:02
9:02
+0:30
40K
24.85 mi13:10:013:08:287:357:33
8:50
-0:12
25.2M
25.20 mi13:13:073:11:347:363:06
8:59
+0:09
Finish
26.22 mi13:22:583:21:257:419:51
9:40
+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

6:52 /mi

Average Pace

7:41 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:32:08

46% of race

Time at Steady Pace

59:55

30% of race

Time at Slower Pace

49:22

25% of race

Average Pace: 7:41 /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 mi10:22:5221:196:5221:19
6:52
#5238
10K
6.21 mi10:44:1242:396:5221:20
6:52
#5541
15K
9.32 mi11:05:571:04:246:5521:45
7:00
#5920
20K
12.43 mi11:28:391:27:067:0122:42
7:18
#6407
Half
13.11 mi11:33:411:32:087:025:02
7:23
#6518
25K
15.53 mi11:52:221:50:497:0818:41
7:42
#6968
30K
18.64 mi12:16:522:15:197:1624:30
7:53
#7354
20M
20.00 mi12:27:442:26:117:1910:52
8:00
#7504
21M
21.00 mi12:36:532:35:207:249:09
9:09
#7841
35K
21.75 mi12:42:452:41:127:255:52
7:51
#7948
23M
23.00 mi12:53:262:51:537:2810:41
8:32
#8253
24M
24.00 mi13:02:283:00:557:329:02
9:02
#8705
40K
24.85 mi13:10:013:08:287:357:33
8:50
#8941
25.2M
25.20 mi13:13:073:11:347:363:06
8:59
#8987
Finish
26.22 mi13:22:583:21:257:419:51
9:40
#9561
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi5238485248526564(Top 25%)5909(Top 39%)5909(Top 262%)
10K6.21 mi3.10 mi5541-3035112-2605112-2605893(Top 22%)5379(Top 35%)5379(Top 239%)
15K9.32 mi3.11 mi5920-3795416-3045416-3046564(Top 25%)5909(Top 39%)5909(Top 262%)
20K12.43 mi3.11 mi6407-4875791-3755791-3757827(Top 29%)6773(Top 45%)6773(Top 301%)
Half13.11 mi0.68 mi6518-1115876-855876-859210(Top 35%)7645(Top 50%)7645(Top 339%)
25K15.53 mi2.42 mi6968-4506213-3376213-33710312(Top 39%)8156(Top 54%)8156(Top 362%)
30K18.64 mi3.11 mi7354-3866469-2566469-25610011(Top 38%)7830(Top 52%)7830(Top 348%)
20M20.00 mi1.36 mi7504-1506535-666535-6610211(Top 38%)7864(Top 52%)7864(Top 349%)
21M21.00 mi1.00 mi7841-3376746-2116746-21114178(Top 53%)9574(Top 63%)9574(Top 425%)
35K21.75 mi0.75 mi7948-1076796-506796-5010911(Top 41%)8060(Top 53%)8060(Top 358%)
23M23.00 mi1.25 mi8253-3056967-1716967-17113403(Top 50%)9091(Top 60%)9091(Top 404%)
24M24.00 mi1.00 mi8705-4527223-2567223-25617358(Top 65%)10778(Top 71%)10778(Top 479%)
40K24.85 mi0.85 mi8941-2367342-1197342-11915194(Top 57%)9760(Top 64%)9760(Top 433%)
25.2M25.20 mi0.35 mi8987-467363-217363-2112354(Top 46%)8417(Top 55%)8417(Top 374%)
Finish26.22 mi1.02 mi9561-5747655-2927655-29220665(Top 78%)12251(Top 81%)12251(Top 544%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 25%
×21stories
+97ft-345ft

Overall

6564

Males

5909

M45-49

5909

5K→10K

3.1 - 6.2 mi

Top 22%
×5stories
+79ft-138ft

Overall

5893

Males

5379

M45-49

5379

10K→15K

6.2 - 9.3 mi

Top 25%
×3stories
+67ft-78ft

Overall

6564

Males

5909

M45-49

5909

15K→20K

9.3 - 12.4 mi

Top 29%
×5stories
+106ft-86ft

Overall

7827

Males

6773

M45-49

6773

20K→Half

12.4 - 13.1 mi

Top 35%
×2stories
+19ft-37ft

Overall

9210

Males

7645

M45-49

7645

Half→25K

13.1 - 15.5 mi

Top 39%
×4stories
+66ft-88ft

Overall

10312

Males

8156

M45-49

8156

25K→30K

15.5 - 18.6 mi

Top 38%
×9stories
+181ft-148ft

Overall

10011

Males

7830

M45-49

7830

30K→20M

18.6 - 20.0 mi

Top 38%
×5stories
+64ft-50ft

Overall

10211

Males

7864

M45-49

7864

20M→21M

20.0 - 21.0 mi

Top 53%
×8stories
+106ft-24ft

Overall

14178

Males

9574

M45-49

9574

21M→35K

21.0 - 21.8 mi

Top 41%
×7stories
+17ft-86ft

Overall

10911

Males

8060

M45-49

8060

35K→23M

21.8 - 23.0 mi

Top 50%
×5stories
+23ft-63ft

Overall

13403

Males

9091

M45-49

9091

23M→24M

23.0 - 24.0 mi

Top 65%
×6stories
+12ft-82ft

Overall

17358

Males

10778

M45-49

10778

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

15194

Males

9760

M45-49

9760

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1story
+13ft-16ft

Overall

12354

Males

8417

M45-49

8417

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2stories
+22ft-21ft

Overall

20665

Males

12251

M45-49

12251

Passing Analysis

Category:
Athletes Passed
322
Passed By
4645
Net Change
-4323
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5238
5K → 10K93396-303#5238#5541
10K → 15K26405-379#5541#5920
15K → 20K20507-487#5920#6407
20K → Half1112-111#6407#6518
Half → 25K16466-450#6518#6968
25K → 30K27413-386#6968#7354
30K → 20M39189-150#7354#7504
20M → 21M8345-337#7504#7841
21M → 35K18125-107#7841#7948
35K → 23M26331-305#7948#8253
23M → 24M15467-452#8253#8705
24M → 40K15251-236#8705#8941
40K → 25.2M1662-46#8941#8987
25.2M → Finish2576-574#8987#9561
TOTALS3224645-4323
📊

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