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SF MARATHON 2ND HALF 2026

James Tsai

SF, CA

Bib: 26638 M 41

0:00
0:00
/ mi
Masters
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Overall
#0 / 3840
Top 38%
Gender (Male)
#0 / 2065
Top 48%
Masters (Masters Men)
#0 / 555
Top 37%
Division (M40-44)
#0 / 200
Top 41%
Race Day Weather
59°/49°F
scattered clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
48 ft elev
2M
9:25/mi
18:50
↑ 138↓ 680.7%
122 ft elev
4M
8:44/mi
36:17
↑ 1631.4%
280 ft elev
6M
10:56/mi
58:09
↑ 55↓ 830.3%
247 ft elev
8M
6:56/mi
1:12:02
↑ 65↓ 1510.8%
143 ft elev
10M
10:08/mi
1:32:17
↑ 61↓ 1741.1%
25 ft elev
12M
10:45/mi
1:53:47
↑ 41↓ 530.1%
12 ft elev
Finish· 13.11 mi
9:57/mi
2:04:49
→ flat
11 ft elev
Course Elevation
9–292 ft
≈
×24story building
•▲ 548 ft climb · ▼ 587 ft descent

The Course

Half Splits

1st Half· via 6M
58:099:42 /mi⚡ faster
2nd Half
1:06:409:23 /mi+14.6%
Positive split — 14.6% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
2M
18:509:252.00 mi18:50
9:25
-
4M
36:179:042.00 mi17:27
8:44
-0:41
6M
58:099:422.00 mi21:52
10:56
+2:12
8M
1:12:029:002.00 mi13:53
6:56
-4:00
10M
1:32:179:142.00 mi20:15
10:08
+3:12
12M
1:53:479:292.00 mi21:30
10:45
+0:37
Finish(13.11 mi)
2:04:499:311.11 mi11:02
9:57
-0:48
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

6:56 /mi

Average Pace

9:31 /mi

Slowest Pace

10:56 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

31:20

25% of race

Time at Steady Pace

50:07

40% of race

Time at Slower Pace

43:22

35% of race

Average Pace: 9:31 /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
2M2.00 mi15461061981774114496
4M2.00 mi1472+741015+4695+3140295987
6M2.00 mi1342+130938+7784+11116082067
8M2.00 mi1311+31913+2579+5127288774
10M2.00 mi1394-83963-5082-31684111597
12M2.00 mi1446-52986-2384-21774114496
Finish(13.11 mi)1.11 mi1445+1984+282+21541101088

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 46%
×9story building
+138ft-68ft

Overall

1774

Males

1144

M40-44

97

2M→4M

2.0 - 4.0 mi

Top 37%
×13story building
+163ft-19ft

Overall

1402

Males

959

M40-44

87

4M→6M

4.0 - 6.0 mi

Top 30%
×4story building
+55ft-83ft

Overall

1160

Males

820

M40-44

68

6M→8M

6.0 - 8.0 mi

Top 33%
×10story building
+65ft-151ft

Overall

1272

Males

887

M40-44

74

8M→10M

8.0 - 10.0 mi

Top 44%
×10story building
+61ft-174ft

Overall

1684

Males

1115

M40-44

98

10M→12M

10.0 - 12.0 mi

Top 46%
×3story building
+41ft-53ft

Overall

1774

Males

1144

M40-44

97

12M→Finish

12.0 - 13.1 mi

Top 40%
×1human
+6ft-6ft

Overall

1541

Males

1010

M40-44

88

Passing Analysis

Category:
Passed
369*
Passed By
268
Net Change
+101
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#1546
2M → 4M11945+74#1546#1472
4M → 6M14010+130#1472#1342
6M → 8M4110+31#1342#1311
8M → 10M15*98-83#1311#1394
10M → 12M3183-52#1394#1446
12M → Finish23*22+1#1446#1445
TOTALS369*268+101

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

Passing Charts

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