Natasha Bozic

Guelph, ON

Bib: 11523 F 23

0:00
0:00
/ mi
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Overall
#0 / 5177
Top 38%
Gender (Female)
#0 / 2293
Top 26%
F20-29
#0 / 279
Top 39%
Race Day Weather
56°/46°F
overcast clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
10 ft elev
2.13M
11:07/mi
23:41
→ flat
13 ft elev
6.62M
9:11/mi
1:04:57
299780.9%
239 ft elev
7.12M
14:24/mi
1:12:09
271.0%
269 ft elev
10.65M
9:12/mi
1:44:36
1273601.3%
48 ft elev
Finish· 13.11 mi
9:37/mi
2:08:14
2441141.0%
205 ft elev
Course Elevation
10277 ft
×22story building
774 ft climb · 557 ft descent

The Course

Half Splits

1st Half· via 6.62M
1:04:579:49 /mi+2.6%
2nd Half
1:03:179:45 /mi✓ faster
Negative split — 2.6% faster in the second half
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
2.13M
23:4111:072.13 mi23:41
11:07
-
6.62M
1:04:579:494.49 mi41:16
9:11
-1:56
7.12M
1:12:0910:080.50 mi7:12
14:24
+5:13
10.65M
1:44:369:493.53 mi32:27
9:12
-5:12
Finish(13.11 mi)
2:08:149:472.46 mi23:38
9:37
+0:25
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

9:11 /mi

Average Pace

9:47 /mi

Slowest Pace

14:24 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

1:37:21

76% of race

Time at Slower Pace

30:53

24% of race

Average Pace: 9:47 /mi

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Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi3.3mi6.6mi9.8mi13.1mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF20-29Seg. OverallSeg. FemalesSeg. F20-29
2.13M2.13 mi111826548111826548
6.62M4.49 mi1558-440421-15683-35182152596
7.12M0.50 mi1704-146465-4487-429771045173
10.65M3.53 mi1842-138524-5997-102162699128
Finish(13.11 mi)2.46 mi1950-108587-63110-132555914156

Segment Performance Analysis

Start → 2.13M

0.0 - 2.1 mi

Top 22%
~flat
+6ft-3ft

Overall

1118

Females

265

F20-24

48

2.13M→6.62M

2.1 - 6.6 mi

Top 35%
×19story building
+299ft-78ft

Overall

1821

Females

525

F20-24

96

6.62M→7.12M

6.6 - 7.1 mi

Top 58%
×2story building
+27ft-0ft

Overall

2977

Females

1045

F20-24

174

7.12M→10.65M

7.1 - 10.7 mi

Top 42%
×21story building
+127ft-360ft

Overall

2162

Females

699

F20-24

128

10.65M→Finish

10.7 - 13.1 mi

Top 49%
×17story building
+244ft-114ft

Overall

2555

Females

914

F20-24

156

Passing Analysis

Category:
Passed
81*
Passed By
913
Net Change
-832
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 2.13M----#1118
2.13M6.62M19459-440#1118#1558
6.62M7.12M8154-146#1558#1704
7.12M10.65M25*163-138#1704#1842
10.65MFinish29*137-108#1842#1950
TOTALS81*913-832

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

Passing Charts

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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

Race Place Events

Race Place Events