Stephanie Tsai

Bib: 18306F

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 47%
Gender (Female)
#0 / 12228
Top 32%
Masters (Masters Women)
#0 / 6759
Top 17%
Division (F45-49)
#0 / 1813
Top 19%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:17
Rank: #17640
Start5K
25:17 | 8:08/mi
10K· 6.21 mi
50:26
Rank: #17375 (+265)
5K10K
25:09 | 8:06/mi
15K· 9.32 mi
1:15:18
Rank: #16918 (+457)
10K15K
24:52 | 8:00/mi
20K· 12.43 mi
1:40:24
Rank: #16524 (+394)
15K20K
25:06 | 8:05/mi
Half· 13.11 mi
1:45:45
Rank: #16433 (+91)
20KHalf
5:21 | 7:50/mi
25K· 15.53 mi
2:05:07
Rank: #15979 (+454)
Half25K
19:22 | 7:59/mi
30K· 18.64 mi
2:30:12
Rank: #15197 (+782)
25K30K
25:05 | 8:04/mi
20M
2:41:00
Rank: #14754 (+443)
30K20M
10:48 | 7:57/mi
21M
2:49:21
Rank: #14380 (+374)
20M21M
8:21 | 8:21/mi
35K· 21.75 mi
2:55:03
Rank: #14192 (+188)
21M35K
5:42 | 7:37/mi
23M
3:04:56
Rank: #13848 (+344)
35K23M
9:53 | 7:54/mi
24M
3:12:32
Rank: #13564 (+284)
23M24M
7:36 | 7:36/mi
40K· 24.85 mi
3:19:13
Rank: #13371 (+193)
24M40K
6:41 | 7:49/mi
25.2M
3:22:09
Rank: #13283 (+88)
40K25.2M
2:56 | 8:30/mi
Finish· 26.22 mi
3:30:01
Rank: #13229 (+54)
25.2MFinish
7:52 | 7:43/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:45:45
Pace8:04 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:44:16
Pace7:57 /mi
📊Negative Split: 1.4% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:4525:178:0825:17
8:08
-
10K
6.21 mi11:42:5450:268:0725:09
8:06
-0:02
15K
9.32 mi12:07:461:15:188:0524:52
8:00
-0:06
20K
12.43 mi12:32:521:40:248:0525:06
8:05
+0:05
Half
13.11 mi12:38:131:45:458:045:21
7:50
-0:15
25K
15.53 mi12:57:352:05:078:0319:22
7:59
+0:09
30K
18.64 mi13:22:402:30:128:0325:05
8:04
+0:05
20M
20.00 mi13:33:282:41:008:0310:48
7:57
-0:07
21M
21.00 mi13:41:492:49:218:048:21
8:21
+0:24
35K
21.75 mi13:47:312:55:038:035:42
7:37
-0:44
23M
23.00 mi13:57:243:04:568:029:53
7:54
+0:17
24M
24.00 mi14:05:003:12:328:017:36
7:36
-0:18
40K
24.85 mi14:11:413:19:138:016:41
7:49
+0:13
25.2M
25.20 mi14:14:373:22:098:012:56
8:30
+0:41
Finish
26.22 mi14:22:293:30:018:017:52
7:43
-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

7:36 /mi

Average Pace

8:01 /mi

Slowest Pace

8:30 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:27:05

99% of race

Time at Steady Pace

2:56

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:01 /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 mi11:17:4525:178:0825:17
8:08
#17640
10K
6.21 mi11:42:5450:268:0725:09
8:06
#17375
15K
9.32 mi12:07:461:15:188:0524:52
8:00
#16918
20K
12.43 mi12:32:521:40:248:0525:06
8:05
#16524
Half
13.11 mi12:38:131:45:458:045:21
7:50
#16433
25K
15.53 mi12:57:352:05:078:0319:22
7:59
#15979
30K
18.64 mi13:22:402:30:128:0325:05
8:04
#15197
20M
20.00 mi13:33:282:41:008:0310:48
7:57
#14754
21M
21.00 mi13:41:492:49:218:048:21
8:21
#14380
35K
21.75 mi13:47:312:55:038:035:42
7:37
#14192
23M
23.00 mi13:57:243:04:568:029:53
7:54
#13848
24M
24.00 mi14:05:003:12:328:017:36
7:36
#13564
40K
24.85 mi14:11:413:19:138:016:41
7:49
#13371
25.2M
25.20 mi14:14:373:22:098:012:56
8:30
#13283
Finish
26.22 mi14:22:293:30:018:017:52
7:43
#13229
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi176406112611216076(Top 57%)5181(Top 42%)5181(Top 286%)
10K6.21 mi3.10 mi17375+2655954+1585954+15817154(Top 60%)5784(Top 47%)5784(Top 319%)
15K9.32 mi3.11 mi16918+4575671+2835671+28316076(Top 57%)5181(Top 42%)5181(Top 286%)
20K12.43 mi3.11 mi16524+3945445+2265445+22615496(Top 55%)4907(Top 40%)4907(Top 271%)
Half13.11 mi0.68 mi16433+915394+515394+5114634(Top 52%)4401(Top 36%)4401(Top 243%)
25K15.53 mi2.42 mi15979+4545151+2435151+24313802(Top 49%)4102(Top 34%)4102(Top 226%)
30K18.64 mi3.11 mi15197+7824771+3804771+38011927(Top 42%)3261(Top 27%)3261(Top 180%)
20M20.00 mi1.36 mi14754+4434556+2154556+21510128(Top 36%)2503(Top 20%)2503(Top 138%)
21M21.00 mi1.00 mi14380+3744370+1864370+1869582(Top 34%)2428(Top 20%)2428(Top 134%)
35K21.75 mi0.75 mi14192+1884288+824288+829554(Top 34%)2409(Top 20%)2409(Top 133%)
23M23.00 mi1.25 mi13848+3444143+1454143+1459296(Top 33%)2412(Top 20%)2412(Top 133%)
24M24.00 mi1.00 mi13564+2844013+1304013+1308460(Top 30%)2092(Top 17%)2092(Top 115%)
40K24.85 mi0.85 mi13371+1933931+823931+828947(Top 31%)2444(Top 20%)2444(Top 135%)
25.2M25.20 mi0.35 mi13283+883899+323899+328944(Top 31%)2528(Top 21%)2528(Top 139%)
Finish26.22 mi1.02 mi13229+543887+123887+1210883(Top 38%)3404(Top 28%)3404(Top 188%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21stories
+97ft-345ft

Overall

16076

Females

5181

F45-49

5181

5K→10K

3.1 - 6.2 mi

Top 60%
×5stories
+79ft-138ft

Overall

17154

Females

5784

F45-49

5784

10K→15K

6.2 - 9.3 mi

Top 57%
×3stories
+67ft-78ft

Overall

16076

Females

5181

F45-49

5181

15K→20K

9.3 - 12.4 mi

Top 55%
×5stories
+106ft-86ft

Overall

15496

Females

4907

F45-49

4907

20K→Half

12.4 - 13.1 mi

Top 52%
×2stories
+19ft-37ft

Overall

14634

Females

4401

F45-49

4401

Half→25K

13.1 - 15.5 mi

Top 49%
×4stories
+66ft-88ft

Overall

13802

Females

4102

F45-49

4102

25K→30K

15.5 - 18.6 mi

Top 42%
×9stories
+181ft-148ft

Overall

11927

Females

3261

F45-49

3261

30K→20M

18.6 - 20.0 mi

Top 36%
×5stories
+64ft-50ft

Overall

10128

Females

2503

F45-49

2503

20M→21M

20.0 - 21.0 mi

Top 34%
×8stories
+106ft-24ft

Overall

9582

Females

2428

F45-49

2428

21M→35K

21.0 - 21.8 mi

Top 34%
×7stories
+17ft-86ft

Overall

9554

Females

2409

F45-49

2409

35K→23M

21.8 - 23.0 mi

Top 33%
×5stories
+23ft-63ft

Overall

9296

Females

2412

F45-49

2412

23M→24M

23.0 - 24.0 mi

Top 30%
×6stories
+12ft-82ft

Overall

8460

Females

2092

F45-49

2092

24M→40K

24.0 - 24.9 mi

Top 31%
×1story
+6ft-20ft

Overall

8947

Females

2444

F45-49

2444

40K→25.2M

24.9 - 25.2 mi

Top 31%
×1story
+13ft-16ft

Overall

8944

Females

2528

F45-49

2528

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2stories
+22ft-21ft

Overall

10883

Females

3404

F45-49

3404

Passing Analysis

Category:
Athletes Passed
4756
Passed By
345
Net Change
+4411
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17640
5K10K439174+265#17640#17375
10K15K49942+457#17375#16918
15K20K44551+394#16918#16524
20KHalf943+91#16524#16433
Half25K4606+454#16433#15979
25K30K7897+782#15979#15197
30K20M4452+443#15197#14754
20M21M3740+374#14754#14380
21M35K1935+188#14380#14192
35K23M3506+344#14192#13848
23M24M2840+284#13848#13564
24M40K1996+193#13564#13371
40K25.2M924+88#13371#13283
25.2MFinish9339+54#13283#13229
TOTALS4756345+4411
📊

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