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BOSTON MARATHON 2023

Xin Tang

Bib: 31887•F

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
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
8:39/mi
26:51
↑ 97↓ 3451.5%
10K· 6.21 mi
9:15/mi
55:34
↑ 79↓ 1380.4%
15K· 9.32 mi
10:16/mi
1:27:28
↑ 67↓ 78
20K· 12.43 mi
13:13/mi
2:08:32
↑ 106↓ 860.1%
Half· 13.11 mi
11:49/mi
2:16:36
↑ 19↓ 370.5%
25K· 15.53 mi
11:26/mi
2:44:19
↑ 66↓ 880.2%
30K· 18.64 mi
12:30/mi
3:23:09
↑ 181↓ 1480.2%
20M
12:45/mi
3:40:29
↑ 64↓ 500.2%
21M
13:49/mi
3:54:18
↑ 106↓ 241.6%
35K· 21.75 mi
10:34/mi
4:02:12
↑ 17↓ 861.7%
23M
11:18/mi
4:16:21
↑ 23↓ 630.6%
24M
13:47/mi
4:30:08
↓ 821.3%
40K· 24.85 mi
11:45/mi
4:40:11
↓ 200.3%
25.2M
12:19/mi
4:44:26
↑ 13↓ 160.2%
Finish· 26.22 mi
10:08/mi
4:54:46
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:16:36
Pace10:25 /mi
2nd Half
Distance13.11 mi
Time2:38:10
Pace12:04 /mi
📊Positive Split: 15.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:42:0026:518:3926:51
8:39
-
10K
6.21 mi12:10:4355:348:5728:43
9:15
+0:36
15K
9.32 mi12:42:371:27:289:2331:54
10:16
+1:01
20K
12.43 mi13:23:412:08:3210:2141:04
13:13
+2:57
Half
13.11 mi13:31:452:16:3610:258:04
11:49
-1:24
25K
15.53 mi13:59:282:44:1910:3527:43
11:26
-0:23
30K
18.64 mi14:38:183:23:0910:5438:50
12:30
+1:04
20M
20.00 mi14:55:383:40:2911:0117:20
12:45
+0:15
21M
21.00 mi15:09:273:54:1811:0913:49
13:49
+1:04
35K
21.75 mi15:17:214:02:1211:087:54
10:34
-3:15
23M
23.00 mi15:31:304:16:2111:0914:09
11:18
+0:44
24M
24.00 mi15:45:174:30:0811:1513:47
13:47
+2:29
40K
24.85 mi15:55:204:40:1111:1610:03
11:45
-2:02
25.2M
25.20 mi15:59:354:44:2611:174:15
12:19
+0:34
Finish
26.22 mi16:09:554:54:4611:1510:20
10:08
-2:11

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

8:39 /mi

Average Pace

11:15 /mi

Slowest Pace

13:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:45:42

36% of race

Time at Steady Pace

1:43:04

35% of race

Time at Slower Pace

1:26:00

29% of race

Average Pace: 11:15 /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 mi11:42:0026:518:3926:51
8:39
#18528
10K
6.21 mi12:10:4355:348:5728:43
9:15
#20405
15K
9.32 mi12:42:371:27:289:2331:54
10:16
#21945
20K
12.43 mi13:23:412:08:3210:2141:04
13:13
#24098
Half
13.11 mi13:31:452:16:3610:258:04
11:49
#24253
25K
15.53 mi13:59:282:44:1910:3527:43
11:26
#24313
30K
18.64 mi14:38:183:23:0910:5438:50
12:30
#24525
20M
20.00 mi14:55:383:40:2911:0117:20
12:45
#24570
21M
21.00 mi15:09:273:54:1811:0913:49
13:49
#24626
35K
21.75 mi15:17:214:02:1211:087:54
10:34
#24552
23M
23.00 mi15:31:304:16:2111:0914:09
11:18
#24459
24M
24.00 mi15:45:174:30:0811:1513:47
13:47
#24592
40K
24.85 mi15:55:204:40:1111:1610:03
11:45
#24571
25.2M
25.20 mi15:59:354:44:2611:174:15
12:19
#24553
Finish
26.22 mi16:09:554:54:4611:1510:20
10:08
#24488
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi185286893689324025(Top 90%)9901(Top 87%)9901(Top 203%)
10K6.21 mi3.10 mi20405-18777981-10887981-108821767(Top 82%)8699(Top 76%)8699(Top 178%)
15K9.32 mi3.11 mi21945-15408808-8278808-82724025(Top 90%)9901(Top 87%)9901(Top 203%)
20K12.43 mi3.11 mi24098-21539947-11399947-113926331(Top 99%)11257(Top 99%)11257(Top 230%)
Half13.11 mi0.68 mi24253-15510034-8710034-8725748(Top 97%)10923(Top 96%)10923(Top 224%)
25K15.53 mi2.42 mi24313-6010086-5210086-5224573(Top 92%)10268(Top 90%)10268(Top 210%)
30K18.64 mi3.11 mi24525-21210218-13210218-13224999(Top 94%)10565(Top 92%)10565(Top 216%)
20M20.00 mi1.36 mi24570-4510251-3310251-3324967(Top 94%)10584(Top 93%)10584(Top 217%)
21M21.00 mi1.00 mi24626-5610286-3510286-3524882(Top 93%)10547(Top 92%)10547(Top 216%)
35K21.75 mi0.75 mi24552+7410250+3610250+3622517(Top 85%)9336(Top 82%)9336(Top 191%)
23M23.00 mi1.25 mi24459+9310212+3810212+3822903(Top 86%)9539(Top 84%)9539(Top 195%)
24M24.00 mi1.00 mi24592-13310297-8510297-8525966(Top 98%)11146(Top 98%)11146(Top 228%)
40K24.85 mi0.85 mi24571+2110293+410293+423588(Top 89%)9992(Top 87%)9992(Top 205%)
25.2M25.20 mi0.35 mi24553+1810288+510288+523048(Top 87%)9694(Top 85%)9694(Top 198%)
Finish26.22 mi1.02 mi24488+6510257+3110257+3122159(Top 83%)9209(Top 81%)9209(Top 189%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21story building
+97ft-345ft

Overall

24025

Females

9901

F18-39

9901

5K→10K

3.1 - 6.2 mi

Top 82%
×5story building
+79ft-138ft

Overall

21767

Females

8699

F18-39

8699

10K→15K

6.2 - 9.3 mi

Top 90%
×3story building
+67ft-78ft

Overall

24025

Females

9901

F18-39

9901

15K→20K

9.3 - 12.4 mi

Top 99%
×5story building
+106ft-86ft

Overall

26331

Females

11257

F18-39

11257

20K→Half

12.4 - 13.1 mi

Top 97%
×2story building
+19ft-37ft

Overall

25748

Females

10923

F18-39

10923

Half→25K

13.1 - 15.5 mi

Top 92%
×4story building
+66ft-88ft

Overall

24573

Females

10268

F18-39

10268

25K→30K

15.5 - 18.6 mi

Top 94%
×9story building
+181ft-148ft

Overall

24999

Females

10565

F18-39

10565

30K→20M

18.6 - 20.0 mi

Top 94%
×5story building
+64ft-50ft

Overall

24967

Females

10584

F18-39

10584

20M→21M

20.0 - 21.0 mi

Top 93%
×8story building
+106ft-24ft

Overall

24882

Females

10547

F18-39

10547

21M→35K

21.0 - 21.8 mi

Top 85%
×7story building
+17ft-86ft

Overall

22517

Females

9336

F18-39

9336

35K→23M

21.8 - 23.0 mi

Top 86%
×5story building
+23ft-63ft

Overall

22903

Females

9539

F18-39

9539

23M→24M

23.0 - 24.0 mi

Top 98%
×6story building
+12ft-82ft

Overall

25966

Females

11146

F18-39

11146

24M→40K

24.0 - 24.9 mi

Top 89%
×1story
+6ft-20ft

Overall

23588

Females

9992

F18-39

9992

40K→25.2M

24.9 - 25.2 mi

Top 87%
×1story
+13ft-16ft

Overall

23048

Females

9694

F18-39

9694

25.2M→Finish

25.2 - 26.2 mi

Top 83%
×2story building
+22ft-21ft

Overall

22159

Females

9209

F18-39

9209

Passing Analysis

Category:
Athletes Passed
506
Passed By
6466
Net Change
-5960
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18528
5K → 10K181895-1877#18528#20405
10K → 15K61546-1540#20405#21945
15K → 20K22155-2153#21945#24098
20K → Half4159-155#24098#24253
Half → 25K66126-60#24253#24313
25K → 30K52264-212#24313#24525
30K → 20M3277-45#24525#24570
20M → 21M1773-56#24570#24626
21M → 35K751+74#24626#24552
35K → 23M996+93#24552#24459
23M → 24M6139-133#24459#24592
24M → 40K3817+21#24592#24571
40K → 25.2M213+18#24571#24553
25.2M → Finish705+65#24553#24488
TOTALS5066466-5960
📊

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