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SF MARATHON 1ST HALF 2025

Michael Grinnell

San Francisco, CA

Bib: 12111 M 33

0:00
0:00
/ mi
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Overall
#0 / 7100
Gender (Male)
#0 / 3977
Division (M30-34)
#0 / 872
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
10:31/mi
19:02
→ flat
12 ft elev
5.34M
10:49/mi
57:12
↑ 80↓ 74
19 ft elev
6.15M
10:51/mi
1:05:59
↑ 1262.8%
149 ft elev
10.54M
10:40/mi
1:52:48
↑ 230↓ 3610.6%
20 ft elev
11.05M
14:21/mi
2:00:07
↑ 1726.4%
213 ft elev
Finish· 13.11 mi
10:03/mi
2:20:49
↑ 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
1:05:5910:44 /mi⚡ faster
2nd Half
1:14:5010:45 /mi+13.4%
Positive split — 13.4% 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
19:0210:311.81 mi19:02
10:31
-
5.34M
57:1210:433.53 mi38:10
10:49
+0:18
6.15M
1:05:5910:440.81 mi8:47
10:51
+0:02
10.54M
1:52:4810:424.39 mi46:49
10:40
-0:11
11.05M
2:00:0710:520.51 mi7:19
14:21
+3:41
Finish(13.11 mi)
2:20:4910:452.06 mi20:42
10:03
-4:18
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

10:03 /mi

Average Pace

10:45 /mi

Slowest Pace

14:21 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

20:42

15% of race

Time at Steady Pace

1:52:48

80% of race

Time at Slower Pace

7:19

5% of race

Average Pace: 10:44 /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. DistOverallMalesM30-34Seg. OverallSeg. MalesSeg. M30-34
1.81M1.81 mi4918305466549183054665
5.34M3.53 mi4786+1322987+67646+1947592978649
6.15M0.81 mi4623+1632918+69635+1139082543550
10.54M4.39 mi4181+4422692+226581+5438082490543
11.05M0.51 mi4112+692658+34577+434302267508
Finish(13.11 mi)2.06 mi3836+2762502+156542+3525481758383

Segment Performance Analysis

Start → 1.81M

0.0 - 1.8 mi

Top 69%
~flat
+4ft-3ft

Overall

4918

Males

3054

M30-34

665

1.81M→5.34M

1.8 - 5.3 mi

Top 67%
×4story building
+80ft-74ft

Overall

4759

Males

2978

M30-34

649

5.34M→6.15M

5.3 - 6.2 mi

Top 55%
×10story building
+126ft-4ft

Overall

3908

Males

2543

M30-34

550

6.15M→10.54M

6.2 - 10.5 mi

Top 54%
×21story building
+230ft-361ft

Overall

3808

Males

2490

M30-34

543

10.54M→11.05M

10.5 - 11.1 mi

Top 48%
×14story building
+172ft-0ft

Overall

3430

Males

2267

M30-34

508

11.05M→Finish

11.1 - 13.1 mi

Top 36%
×7story building
+97ft-114ft

Overall

2548

Males

1758

M30-34

383

Passing Analysis

Category:
Passed
1379*
Passed By
297
Net Change
+1082
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.81M----#4918
1.81M → 5.34M347*215+132#4918#4786
5.34M → 6.15M17916+163#4786#4623
6.15M → 10.54M483*41+442#4623#4181
10.54M → 11.05M9122+69#4181#4112
11.05M → Finish279*3+276#4112#3836
TOTALS1379*297+1082

* 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

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