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SF MARATHON 1ST HALF 2025

Jameson Chan

Brooklyn, NY

Bib: 11469 M 42

0:00
0:00
/ mi
Masters
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Overall
#0 / 7100
Top 28%
Gender (Male)
#0 / 3977
Top 37%
Masters (Masters Men)
#0 / 1096
Top 29%
Division (M40-44)
#0 / 336
Top 38%
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
9:43/mi
17:36
→ flat
12 ft elev
5.34M
9:24/mi
50:48
↑ 80↓ 74
19 ft elev
6.15M
9:27/mi
58:27
↑ 1262.8%
149 ft elev
10.54M
9:06/mi
1:38:26
↑ 230↓ 3610.6%
20 ft elev
11.05M
13:00/mi
1:45:04
↑ 1726.4%
213 ft elev
Finish· 13.11 mi
9:17/mi
2:04:10
↑ 97↓ 1140.2%
205 ft elev
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6.15M
58:279:30 /mi⚡ faster
2nd Half
1:05:439:27 /mi+12.4%
Positive split — 12.4% 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
17:369:431.81 mi17:36
9:43
-
5.34M
50:489:313.53 mi33:12
9:24
-0:19
6.15M
58:279:300.81 mi7:39
9:27
+0:03
10.54M
1:38:269:204.39 mi39:59
9:06
-0:21
11.05M
1:45:049:310.51 mi6:38
13:00
+3:54
Finish(13.11 mi)
2:04:109:282.06 mi19:06
9:17
-3:43
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

9:06 /mi

Average Pace

9:28 /mi

Slowest Pace

13:00 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

1:57:32

95% of race

Time at Slower Pace

6:38

5% of race

Average Pace: 9:28 /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. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
1.81M1.81 mi3337226920333372269203
5.34M3.53 mi2707+6301901+368168+3524711770156
6.15M0.81 mi2584+1231835+66162+618791423120
10.54M4.39 mi2119+4651564+271135+2716991301112
11.05M0.51 mi2111+81557+7136-124751745132
Finish(13.11 mi)2.06 mi1986+1251470+87129+71518115093

Segment Performance Analysis

Start → 1.81M

0.0 - 1.8 mi

Top 47%
~flat
+4ft-3ft

Overall

3337

Males

2269

M40-44

203

1.81M→5.34M

1.8 - 5.3 mi

Top 35%
×4story building
+80ft-74ft

Overall

2471

Males

1770

M40-44

156

5.34M→6.15M

5.3 - 6.2 mi

Top 26%
×10story building
+126ft-4ft

Overall

1879

Males

1423

M40-44

120

6.15M→10.54M

6.2 - 10.5 mi

Top 24%
×21story building
+230ft-361ft

Overall

1699

Males

1301

M40-44

112

10.54M→11.05M

10.5 - 11.1 mi

Top 35%
×14story building
+172ft-0ft

Overall

2475

Males

1745

M40-44

132

11.05M→Finish

11.1 - 13.1 mi

Top 21%
×7story building
+97ft-114ft

Overall

1518

Males

1150

M40-44

93

Passing Analysis

Category:
▲Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 1.81M-#3337
1.81M → 5.34M
36666*+630
#3337 → #2707
5.34M → 6.15M
3126+123
#2707 → #2584
6.15M → 10.54M
18483*+465
#2584 → #2119
10.54M → 11.05M
3341+8
#2119 → #2111
11.05M → Finish
11136*+125
#2111 → #1986
TOTALS
1011452*+1351
#3337 → #1986

* 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

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