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BOSTON MARATHON 2023

Sarah Tsang

Bib: 16654•F

BC

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 33%
Gender (Female)
#0 / 11423
Top 13%
Division (F18-39)
#0 / 4884
Top 24%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:05
Rank: #6935
Start → 5K
22:05 | 7:06/mi
10K· 6.21 mi
44:18
Rank: #7301 (-366)
5K → 10K
22:13 | 7:09/mi
15K· 9.32 mi
1:06:55
Rank: #7612 (-311)
10K → 15K
22:37 | 7:17/mi
20K· 12.43 mi
1:30:07
Rank: #7901 (-289)
15K → 20K
23:12 | 7:28/mi
Half· 13.11 mi
1:35:09
Rank: #7972 (-71)
20K → Half
5:02 | 7:23/mi
25K· 15.53 mi
1:53:56
Rank: #8341 (-369)
Half → 25K
18:47 | 7:45/mi
30K· 18.64 mi
2:18:10
Rank: #8453 (-112)
25K → 30K
24:14 | 7:48/mi
20M
2:29:06
Rank: #8606 (-153)
30K → 20M
10:56 | 8:03/mi
21M
2:37:30
Rank: #8641 (-35)
20M → 21M
8:24 | 8:24/mi
35K· 21.75 mi
2:43:16
Rank: #8690 (-49)
21M → 35K
5:46 | 7:42/mi
23M
2:53:18
Rank: #8754 (-64)
35K → 23M
10:02 | 8:01/mi
24M
3:01:02
Rank: #8736 (+18)
23M → 24M
7:44 | 7:44/mi
40K· 24.85 mi
3:07:33
Rank: #8666 (+70)
24M → 40K
6:31 | 7:37/mi
25.2M
3:10:25
Rank: #8660 (+6)
40K → 25.2M
2:52 | 8:19/mi
Finish· 26.22 mi
3:18:15
Rank: #8676 (-16)
25.2M → Finish
7:50 | 7:41/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:09
Pace7:15 /mi
2nd Half
Distance13.11 mi
Time1:43:06
Pace7:52 /mi
📊Positive Split: 8.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:12:1422:057:0622:05
7:06
-
10K
6.21 mi11:34:2744:187:0822:13
7:09
+0:03
15K
9.32 mi11:57:041:06:557:1122:37
7:17
+0:08
20K
12.43 mi12:20:161:30:077:1523:12
7:28
+0:11
Half
13.11 mi12:25:181:35:097:155:02
7:23
-0:05
25K
15.53 mi12:44:051:53:567:2018:47
7:45
+0:22
30K
18.64 mi13:08:192:18:107:2524:14
7:48
+0:03
20M
20.00 mi13:19:152:29:067:2710:56
8:03
+0:15
21M
21.00 mi13:27:392:37:307:308:24
8:24
+0:21
35K
21.75 mi13:33:252:43:167:305:46
7:42
-0:42
23M
23.00 mi13:43:272:53:187:3210:02
8:01
+0:19
24M
24.00 mi13:51:113:01:027:337:44
7:44
-0:17
40K
24.85 mi13:57:423:07:337:336:31
7:37
-0:07
25.2M
25.20 mi14:00:343:10:257:332:52
8:19
+0:42
Finish
26.22 mi14:08:243:18:157:347:50
7:41
-0:38

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

7:06 /mi

Average Pace

7:34 /mi

Slowest Pace

8:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:46:01

84% of race

Time at Steady Pace

23:50

12% of race

Time at Slower Pace

8:24

4% of race

Average Pace: 7:34 /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 mi11:12:1422:057:0622:05
7:06
#6935
10K
6.21 mi11:34:2744:187:0822:13
7:09
#7301
15K
9.32 mi11:57:041:06:557:1122:37
7:17
#7612
20K
12.43 mi12:20:161:30:077:1523:12
7:28
#7901
Half
13.11 mi12:25:181:35:097:155:02
7:23
#7972
25K
15.53 mi12:44:051:53:567:2018:47
7:45
#8341
30K
18.64 mi13:08:192:18:107:2524:14
7:48
#8453
20M
20.00 mi13:19:152:29:067:2710:56
8:03
#8606
21M
21.00 mi13:27:392:37:307:308:24
8:24
#8641
35K
21.75 mi13:33:252:43:167:305:46
7:42
#8690
23M
23.00 mi13:43:272:53:187:3210:02
8:01
#8754
24M
24.00 mi13:51:113:01:027:337:44
7:44
#8736
40K
24.85 mi13:57:423:07:337:336:31
7:37
#8666
25.2M
25.20 mi14:00:343:10:257:332:52
8:19
#8660
Finish
26.22 mi14:08:243:18:157:347:50
7:41
#8676
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi69357097098418(Top 32%)1222(Top 11%)1222(Top 25%)
10K6.21 mi3.10 mi7301-366809-100809-1007787(Top 29%)980(Top 9%)980(Top 20%)
15K9.32 mi3.11 mi7612-311904-95904-958418(Top 32%)1222(Top 11%)1222(Top 25%)
20K12.43 mi3.11 mi7901-2891019-1151019-1159063(Top 34%)1515(Top 13%)1515(Top 31%)
Half13.11 mi0.68 mi7972-711052-331052-339296(Top 35%)1588(Top 14%)1588(Top 33%)
25K15.53 mi2.42 mi8341-3691203-1511203-15110677(Top 40%)2319(Top 20%)2319(Top 47%)
30K18.64 mi3.11 mi8453-1121286-831286-839369(Top 35%)1870(Top 16%)1870(Top 38%)
20M20.00 mi1.36 mi8606-1531358-721358-7210605(Top 40%)2531(Top 22%)2531(Top 52%)
21M21.00 mi1.00 mi8641-351388-301388-309862(Top 37%)2308(Top 20%)2308(Top 47%)
35K21.75 mi0.75 mi8690-491420-321420-3210002(Top 38%)2340(Top 20%)2340(Top 48%)
23M23.00 mi1.25 mi8754-641468-481468-489843(Top 37%)2427(Top 21%)2427(Top 50%)
24M24.00 mi1.00 mi8736+181481-131481-139317(Top 35%)2247(Top 20%)2247(Top 46%)
40K24.85 mi0.85 mi8666+701475+61475+67477(Top 28%)1550(Top 14%)1550(Top 32%)
25.2M25.20 mi0.35 mi8660+61483-81483-88432(Top 32%)1983(Top 17%)1983(Top 41%)
Finish26.22 mi1.02 mi8676-161519-361519-369906(Top 37%)2653(Top 23%)2653(Top 54%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 32%
×21stories
+97ft-345ft

Overall

8418

Females

1222

F18-39

1222

5K→10K

3.1 - 6.2 mi

Top 29%
×5stories
+79ft-138ft

Overall

7787

Females

980

F18-39

980

10K→15K

6.2 - 9.3 mi

Top 32%
×3stories
+67ft-78ft

Overall

8418

Females

1222

F18-39

1222

15K→20K

9.3 - 12.4 mi

Top 34%
×5stories
+106ft-86ft

Overall

9063

Females

1515

F18-39

1515

20K→Half

12.4 - 13.1 mi

Top 35%
×2stories
+19ft-37ft

Overall

9296

Females

1588

F18-39

1588

Half→25K

13.1 - 15.5 mi

Top 40%
×4stories
+66ft-88ft

Overall

10677

Females

2319

F18-39

2319

25K→30K

15.5 - 18.6 mi

Top 35%
×9stories
+181ft-148ft

Overall

9369

Females

1870

F18-39

1870

30K→20M

18.6 - 20.0 mi

Top 40%
×5stories
+64ft-50ft

Overall

10605

Females

2531

F18-39

2531

20M→21M

20.0 - 21.0 mi

Top 37%
×8stories
+106ft-24ft

Overall

9862

Females

2308

F18-39

2308

21M→35K

21.0 - 21.8 mi

Top 38%
×7stories
+17ft-86ft

Overall

10002

Females

2340

F18-39

2340

35K→23M

21.8 - 23.0 mi

Top 37%
×5stories
+23ft-63ft

Overall

9843

Females

2427

F18-39

2427

23M→24M

23.0 - 24.0 mi

Top 35%
×6stories
+12ft-82ft

Overall

9317

Females

2247

F18-39

2247

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7477

Females

1550

F18-39

1550

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8432

Females

1983

F18-39

1983

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2stories
+22ft-21ft

Overall

9906

Females

2653

F18-39

2653

Passing Analysis

Category:
Athletes Passed
755
Passed By
2496
Net Change
-1741
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6935
5K → 10K78444-366#6935#7301
10K → 15K46357-311#7301#7612
15K → 20K49338-289#7612#7901
20K → Half576-71#7901#7972
Half → 25K32401-369#7972#8341
25K → 30K107219-112#8341#8453
30K → 20M41194-153#8453#8606
20M → 21M6095-35#8606#8641
21M → 35K2978-49#8641#8690
35K → 23M56120-64#8690#8754
23M → 24M7052+18#8754#8736
24M → 40K9727+70#8736#8666
40K → 25.2M2418+6#8666#8660
25.2M → Finish6177-16#8660#8676
TOTALS7552496-1741
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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