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SF MARATHON 1ST HALF 2025

John Surdilla

Union City, CA

Bib: 15215 M 54

0:00
0:00
/ mi
Masters
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Overall
#0 / 7100
Gender (Male)
#0 / 3977
Masters (Masters Men)
#0 / 1096
Division (M50-54)
#0 / 185
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
10:19/mi
18:40
→ flat
12 ft elev
5.34M
10:53/mi
57:06
↑ 80↓ 74
19 ft elev
6.15M
11:51/mi
1:06:42
↑ 1262.8%
149 ft elev
10.54M
11:35/mi
1:57:35
↑ 230↓ 3610.6%
20 ft elev
11.05M
18:43/mi
2:07:08
↑ 1726.4%
213 ft elev
Finish· 13.11 mi
13:10/mi
2:34:14
↑ 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
1:06:4210:51 /mi⚡ faster
2nd Half
1:27:3212:35 /mi+31.2%
Positive split — 31.2% 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
18:4010:191.81 mi18:40
10:19
-
5.34M
57:0610:423.53 mi38:26
10:53
+0:34
6.15M
1:06:4210:510.81 mi9:36
11:51
+0:58
10.54M
1:57:3511:094.39 mi50:53
11:35
-0:16
11.05M
2:07:0811:300.51 mi9:33
18:43
+7:08
Finish(13.11 mi)
2:34:1411:462.06 mi27:06
13:10
-5:33
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

10:19 /mi

Average Pace

11:46 /mi

Slowest Pace

18:43 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

18:40

12% of race

Time at Steady Pace

2:06:01

82% of race

Time at Slower Pace

9:33

6% of race

Average Pace: 11:46 /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. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
1.81M1.81 mi4563288712045632887120
5.34M3.53 mi4751-1882969-82126-648743033129
6.15M0.81 mi4820-693003-34125+151043140126
10.54M4.39 mi4872-523031-28126-149853048125
11.05M0.51 mi5009-1373080-49128-261463571159
Finish(13.11 mi)2.06 mi5206-1973153-73130-257743326147

Segment Performance Analysis

Start → 1.81M

0.0 - 1.8 mi

Top 64%
~flat
+4ft-3ft

Overall

4563

Males

2887

M50-54

122

1.81M→5.34M

1.8 - 5.3 mi

Top 69%
×4story building
+80ft-74ft

Overall

4874

Males

3033

M50-54

130

5.34M→6.15M

5.3 - 6.2 mi

Top 72%
×10story building
+126ft-4ft

Overall

5104

Males

3140

M50-54

127

6.15M→10.54M

6.2 - 10.5 mi

Top 70%
×21story building
+230ft-361ft

Overall

4985

Males

3048

M50-54

126

10.54M→11.05M

10.5 - 11.1 mi

Top 87%
×14story building
+172ft-0ft

Overall

6146

Males

3571

M50-54

160

11.05M→Finish

11.1 - 13.1 mi

Top 81%
×7story building
+97ft-114ft

Overall

5774

Males

3326

M50-54

147

Passing Analysis

Category:
▼Net Change
0
0 passed by0* passed
SegmentMovementRank
Start → 1.81M-#4563
1.81M → 5.34M
387199*-188
#4563 → #4751
5.34M → 6.15M
11344-69
#4751 → #4820
6.15M → 10.54M
207155*-52
#4820 → #4872
10.54M → 11.05M
1425-137
#4872 → #5009
11.05M → Finish
22831*-197
#5009 → #5206
TOTALS
1077434*-643
#4563 → #5206

* 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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