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SF MARATHON 1ST HALF 2026

Guang Cui

North Potomac, MD

Bib: 20321 M 26

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 10%
Gender (Male)
#0 / 3619
Top 15%
Division (M25-29)
#0 / 796
Top 17%
Race Day Weather
59°/49°F
scattered clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
8:12/mi
16:24
→ flat
4M
8:10/mi
32:43
↑ 67↓ 69
6M
8:15/mi
49:14
↑ 123
8M
7:58/mi
1:05:11
↑ 166↓ 53
9.6M
7:58/mi
1:17:56
↑ 68↓ 193
10.26M
9:12/mi
1:24:00
↓ 114
10.5M
8:20/mi
1:26:00
→ flat
12M
11:43/mi
1:43:35
↑ 280
Finish· 13.11 mi
9:02/mi
1:53:36
↑ 14↓ 89
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6M
49:148:12 /mi⚡ faster
2nd Half
1:04:229:03 /mi+30.7%
Positive split — 30.7% 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
16:248:122.00 mi16:24
8:12
-
4M
32:438:112.00 mi16:19
8:10
-0:02
6M
49:148:122.00 mi16:31
8:15
+0:05
8M
1:05:118:092.00 mi15:57
7:58
-0:17
9.6M
1:17:568:071.60 mi12:45
7:58
0:00
10.26M
1:24:008:110.66 mi6:04
9:12
+1:14
10.5M
1:26:008:110.24 mi2:00
8:20
-0:52
12M
1:43:358:381.50 mi17:35
11:43
+3:23
Finish(13.11 mi)
1:53:368:401.11 mi10:01
9:02
-2:41
Trend:
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoints & Pacing

Pace Line

Fastest Pace

7:58 /mi

Average Pace

8:40 /mi

Slowest Pace

11:43 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

1:19:56

70% of race

Time at Slower Pace

33:40

30% of race

Average Pace: 8:40 /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
Featured Segment

Garmin Challenge

Top 11%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

8:04

Segment Time

8:58/mi

Pace

0.90 mi

Distance

Overall

695

Men

565

Division

142

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
2M2.00 mi6475421291029804184
4M2.00 mi594+53505+37119+10532448101
6M2.00 mi603-9507-2118+1660548130
8M2.00 mi516+87437+70103+1543637992
9.6M1.60 mi612-96511-74120-1715101001236
10.26M0.66 mi616-4512-1122-2772612149
10.5M0.24 mi617-1513-1123-1634527134
12M1.50 mi649-32532-19129-61029804184
Finish(13.11 mi)1.11 mi675-26560-28133-416681227298

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 16%
~flat
+5ft-3ft

Overall

1029

Males

804

M25-29

184

2M→4M

2.0 - 4.0 mi

Top 8%
×4story building
+67ft-69ft

Overall

532

Males

448

M25-29

101

4M→6M

4.0 - 6.0 mi

Top 10%
×9story building
+123ft-9ft

Overall

660

Males

548

M25-29

130

6M→8M

6.0 - 8.0 mi

Top 7%
×12story building
+166ft-53ft

Overall

436

Males

379

M25-29

92

8M→9.6M

8.0 - 9.6 mi

Top 23%
×13story building
+68ft-193ft

Overall

1510

Males

1001

M25-29

236

9.6M→10.26M

9.6 - 10.3 mi

Top 12%
×9story building
+0ft-114ft

Overall

772

Males

612

M25-29

150

10.26M→10.5M

10.3 - 10.5 mi

Top 10%
~flat
+1ft-0ft

Overall

634

Males

527

M25-29

135

10.5M→12M

10.5 - 12.0 mi

Top 16%
×21story building
+280ft-26ft

Overall

1029

Males

804

M25-29

184

12M→Finish

12.0 - 13.1 mi

Top 25%
×7story building
+14ft-89ft

Overall

1668

Males

1227

M25-29

298

Passing Analysis

Category:
▼Net Change
0
0 passed by0* passed
SegmentMovementRank
Start → 2M-#647
2M → 4M
2578+53
#647 → #594
4M → 6M
3425-9
#594 → #603
6M → 8M
16103+87
#603 → #516
8M → 9.6M
993-96
#516 → #612
9.6M → 10.26M
117-4
#612 → #616
10.26M → 10.5M
21-1
#616 → #617
10.5M → 12M
5523-32
#617 → #649
12M → Finish
4822*-26
#649 → #675
TOTALS
290262*-28
#647 → #675

* 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