Cassandra Zhou

Bib: 24334FAge: 22

Castro Valley, CA

0:00
0:00
/ mi
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Overall
#0 / 3840
Top 49%
Gender (Female)
#0 / 1760
Top 36%
F20-29
#0 / 218
Top 44%
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
2M
18:54
Rank: #1576
Start2M
18:54 | 9:27/mi
4M
37:16
Rank: #1661 (-85)
2M4M
18:22 | 9:11/mi
6M
1:01:40
Rank: #1775 (-114)
4M6M
24:24 | 12:12/mi
8M
1:17:03
Rank: #1793 (-18)
6M8M
15:23 | 7:41/mi
10M
1:38:30
Rank: #1834 (-41)
8M10M
21:27 | 10:44/mi
12M
2:00:35
Rank: #1858 (-24)
10M12M
22:05 | 11:02/mi
Finish· 13.11 mi
2:12:31
Rank: #1870 (-12)
12MFinish
11:56 | 10:46/mi

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:01:40
Pace10:17 /mi
2nd Half
Distance7.11 mi
Time1:10:51
Pace9:58 /mi
📊Positive Split: 14.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi09:05:2318:549:2718:54
9:27
-
4M
4.00 mi09:23:4537:169:1918:22
9:11
-0:16
6M
6.00 mi09:48:091:01:4010:1724:24
12:12
+3:01
8M
8.00 mi10:03:321:17:039:3815:23
7:41
-4:31
10M
10.00 mi10:24:591:38:309:5121:27
10:44
+3:03
12M
12.00 mi10:47:042:00:3510:0322:05
11:02
+0:18
Finish
13.11 mi10:59:002:12:3110:0711:56
10:46
-0:16

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

7:41 /mi

Average Pace

10:07 /mi

Slowest Pace

12:12 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

52:39

40% of race

Time at Steady Pace

55:28

42% of race

Time at Slower Pace

24:24

18% of race

Average Pace: 10:06 /mi

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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...
0mi3.3mi6.6mi9.8mi13.1mi
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
2M
2.00 mi09:05:2318:549:2718:54
9:27
#1576
4M
4.00 mi09:23:4537:169:1918:22
9:11
#1661
6M
6.00 mi09:48:091:01:4010:1724:24
12:12
#1775
8M
8.00 mi10:03:321:17:039:3815:23
7:41
#1793
10M
10.00 mi10:24:591:38:309:5121:27
10:44
#1834
12M
12.00 mi10:47:042:00:3510:0322:05
11:02
#1858
Finish
13.11 mi10:59:002:12:3110:0711:56
10:46
#1870
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF20-29Seg. OverallSeg. FemalesSeg. F20-29
2M2.00 mi2.00 mi1576490761944(Top 51%)702(Top 40%)94(Top 43%)
4M4.00 mi2.00 mi1661-85530-4081-51764(Top 46%)588(Top 33%)86(Top 39%)
6M6.00 mi2.00 mi1775-114583-5385-41971(Top 51%)671(Top 38%)99(Top 45%)
8M8.00 mi2.00 mi1793-18590-788-31972(Top 51%)676(Top 38%)103(Top 47%)
10M10.00 mi2.00 mi1834-41614-2492-42051(Top 53%)729(Top 41%)103(Top 47%)
12M12.00 mi2.00 mi1858-24631-1793-11944(Top 51%)702(Top 40%)94(Top 43%)
Finish13.11 mi1.11 mi1870-12640-995-22027(Top 53%)762(Top 43%)102(Top 47%)

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 51%
×9stories
+138ft-68ft

Overall

1944

Females

702

F20-24

94

2M→4M

2.0 - 4.0 mi

Top 46%
×13stories
+163ft-19ft

Overall

1764

Females

588

F20-24

86

4M→6M

4.0 - 6.0 mi

Top 51%
×4stories
+55ft-83ft

Overall

1971

Females

671

F20-24

99

6M→8M

6.0 - 8.0 mi

Top 51%
×10stories
+65ft-151ft

Overall

1972

Females

676

F20-24

103

8M→10M

8.0 - 10.0 mi

Top 53%
×10stories
+61ft-174ft

Overall

2051

Females

729

F20-24

103

10M→12M

10.0 - 12.0 mi

Top 51%
×3stories
+41ft-53ft

Overall

1944

Females

702

F20-24

94

12M→Finish

12.0 - 13.1 mi

Top 53%
×1human
+6ft-6ft

Overall

2027

Females

762

F20-24

102

Passing Analysis

Category:
Athletes Passed
173*
Passed By
467
Net Change
-294
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#1576
2M4M56141-85#1576#1661
4M6M17131-114#1661#1775
6M8M2745-18#1775#1793
8M10M22*63-41#1793#1834
10M12M3660-24#1834#1858
12MFinish15*27-12#1858#1870
TOTALS173*467-294

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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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Official Timing Data

The San Francisco Marathon

The San Francisco Marathon