Derrick Cai

San Jose, CA

Bib: 18963 M 21

0:00
0:00
/ mi
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Overall
#0 / 7100
Top 16%
Gender (Male)
#0 / 3977
Top 23%
M20-29
#0 / 437
Top 31%
Race Day Weather
56°/46°F
light rain

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
10 ft elev
1.81M
9:05/mi
16:27
→ flat
12 ft elev
5.34M
8:58/mi
48:05
8074
19 ft elev
6.15M
9:24/mi
55:42
1262.8%
149 ft elev
10.54M
8:29/mi
1:32:55
2303610.6%
20 ft elev
11.05M
10:49/mi
1:38:26
1726.4%
213 ft elev
Finish· 13.11 mi
8:26/mi
1:55:48
971140.2%
205 ft elev
Course Elevation
10277 ft
×22story building
774 ft climb · 557 ft descent

The Course

Half Splits

1st Half· via 6.15M
55:429:03 /mi⚡ faster
2nd Half
1:00:068:38 /mi+7.9%
Positive split — 7.9% 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
1.81M
16:279:051.81 mi16:27
9:05
-
5.34M
48:059:003.53 mi31:38
8:58
-0:07
6.15M
55:429:030.81 mi7:37
9:24
+0:26
10.54M
1:32:558:494.39 mi37:13
8:29
-0:55
11.05M
1:38:268:540.51 mi5:31
10:49
+2:20
Finish(13.11 mi)
1:55:488:502.06 mi17:22
8:26
-2:23
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

8:26 /mi

Average Pace

8:50 /mi

Slowest Pace

10:49 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

54:35

47% of race

Time at Steady Pace

55:42

48% of race

Time at Slower Pace

5:31

5% of race

Average Pace: 8:50 /mi

Loading chart...
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. DistOverallMalesM20-29Seg. OverallSeg. MalesSeg. M20-29
1.81M1.81 mi2085154721820851547218
5.34M3.53 mi1865+2201411+136213+517701349204
6.15M0.81 mi1826+391387+24207+618211389214
10.54M4.39 mi1335+4911058+329161+46932770130
11.05M0.51 mi1271+641010+48156+5805674130
Finish(13.11 mi)2.06 mi1107+164896+114137+1960851189

Segment Performance Analysis

Start → 1.81M

0.0 - 1.8 mi

Top 29%
~flat
+4ft-3ft

Overall

2085

Males

1547

M20-24

218

1.81M→5.34M

1.8 - 5.3 mi

Top 25%
×4story building
+80ft-74ft

Overall

1770

Males

1349

M20-24

204

5.34M→6.15M

5.3 - 6.2 mi

Top 26%
×10story building
+126ft-4ft

Overall

1821

Males

1389

M20-24

214

6.15M→10.54M

6.2 - 10.5 mi

Top 13%
×21story building
+230ft-361ft

Overall

932

Males

770

M20-24

130

10.54M→11.05M

10.5 - 11.1 mi

Top 11%
×14story building
+172ft-0ft

Overall

805

Males

674

M20-24

130

11.05M→Finish

11.1 - 13.1 mi

Top 9%
×7story building
+97ft-114ft

Overall

608

Males

511

M20-24

89

Passing Analysis

Category:
Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 1.81M-#2085
1.81M5.34M
65285*+220
#2085 #1865
5.34M6.15M
1958+39
#1865 #1826
6.15M10.54M
3494+491
#1826 #1335
10.54M11.05M
367+64
#1335 #1271
11.05MFinish
1165*+164
#1271 #1107
TOTALS
911069*+978
#2085 #1107

* 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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Official Timing Data

The San Francisco Marathon

The San Francisco Marathon

Race Place Events

Race Place Events