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SF MARATHON 1ST HALF 2023

David Jr Cheung

Oakland, CA

Bib: 12595 M 14

0:00
0:00
/ mi
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Overall
#0 / 6072
Gender (Male)
#0 / 3331
M19 & Under
#0 / 94
Race Day Weather
60°/50°F
overcast clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
10 ft elev
1.40M
8:26/mi
11:49
→ flat
11 ft elev
2.13M
18:06/mi
25:02
→ flat
13 ft elev
6.43M
13:57/mi
1:25:01
↑ 274↓ 780.9%
213 ft elev
6.62M
-53:-15/mi
1:15:05
↑ 161.6%
239 ft elev
10.65M
18:50/mi
2:30:59
↑ 153↓ 3611.0%
48 ft elev
Finish· 13.11 mi
18:49/mi
3:17:15
↑ 244↓ 1141.0%
205 ft elev
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6.62M
1:15:0511:21 /mi⚡ faster
2nd Half
2:02:1018:50 /mi+62.7%
Positive split — 62.7% slower in the second half
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
1.40M
11:498:261.40 mi11:49
8:26
-
2.13M
25:0211:450.73 mi13:13
18:06
+9:40
6.43M
1:25:0113:134.30 mi59:59
13:57
-4:09
6.62M
1:15:0511:210.19 mi
-53:-15
-67:12
10.65M
2:30:5914:114.03 mi1:15:54
18:50
+72:05
Finish(13.11 mi)
3:17:1515:032.46 mi46:16
18:49
-0:01
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

-54:-15 /mi

Average Pace

15:03 /mi

Slowest Pace

18:50 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

3:17:15

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 15:03 /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. DistOverallMalesM19 & UnderSeg. OverallSeg. MalesSeg. M19 & Under
1.40M1.40 mi14871040361487104036
2.13M0.73 mi1778-2911227-18738-22195147447
6.43M4.30 mi4057-22792500-127379-414885286285
6.62M0.19 mi3631+4262264+23669+10---
10.65M4.03 mi5751-21203219-95592-236085334094
Finish(13.11 mi)2.46 mi5912-1613270-5193-16055332794

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 24%
~flat
+3ft-2ft

Overall

1487

Males

1040

M0-14

2

1.40M→2.13M

1.4 - 2.1 mi

Top 36%
~flat
+3ft-1ft

Overall

2195

Males

1474

M0-14

4

2.13M→6.43M

2.1 - 6.4 mi

Top 80%
×17story building
+274ft-78ft

Overall

4885

Males

2862

M0-14

7

6.43M→6.62M

6.4 - 6.6 mi

×1story
+16ft-0ft

Overall

-

Males

-

M0-14

-

6.62M→10.65M

6.6 - 10.7 mi

Top 100%
×21story building
+153ft-361ft

Overall

6085

Males

3340

M0-14

10

10.65M→Finish

10.7 - 13.1 mi

Top 100%
×17story building
+244ft-114ft

Overall

6055

Males

3327

M0-14

10

Passing Analysis

Category:
▼Net Change
0
0 passed by0* passed
SegmentMovementRank
Start → 1.40M-#1487
1.40M → 2.13M
32332-291
#1487 → #1778
2.13M → 6.43M
22823*-2279
#1778 → #4057
6.43M → 6.62M
0426+426
#4057 → #3631
6.62M → 10.65M
21211*-2120
#3631 → #5751
10.65M → Finish
17413*-161
#5751 → #5912
TOTALS
4900475*-4425
#1487 → #5912

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

Passing Visualized

Category:
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Passing Circle

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Position Flow

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Race Lanes

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The San Francisco Marathon

The San Francisco Marathon

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