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SF MARATHON 1ST HALF 2026

Yizhou Xiao

Bib: 16726•M•Age: 27

Redwood City, CA

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

⏱️ Race Timeline

Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
12:42/mi
25:25
→ flat
4M
11:27/mi
48:19
↑ 67↓ 69
6M
12:15/mi
1:12:50
↑ 1231.1%
8M
13:12/mi
1:39:15
↑ 166↓ 531.1%
9.6M
9:27/mi
1:54:23
↑ 68↓ 1931.5%
10M
27:19/mi
2:05:18
↓ 241.1%
10.5M
5:34/mi
2:08:05
↓ 732.7%
12M
17:09/mi
2:33:48
↑ 2803.2%
Finish· 13.11 mi
11:14/mi
2:46:16
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:12:50
Pace12:08 /mi
2nd Half
Distance7.11 mi
Time1:33:26
Pace13:09 /mi
📊Positive Split: 28.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:09:2925:2512:4225:25
12:42
-
4M
4.00 mi07:32:2348:1912:0522:54
11:27
-1:15
6M
6.00 mi07:56:541:12:5012:0824:31
12:15
+0:48
8M
8.00 mi08:23:191:39:1512:2426:25
13:12
+0:57
9.6M
9.60 mi08:38:271:54:2311:5515:08
9:27
-3:45
10M
10.00 mi08:49:222:05:1812:3210:55
27:19
+17:52
10.5M
10.50 mi08:52:092:08:0512:122:47
5:34
-21:45
12M
12.00 mi09:17:522:33:4812:4925:43
17:09
+11:35
Finish
13.11 mi09:30:202:46:1612:4112:28
11:14
-5:55

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

5:34 /mi

Average Pace

12:41 /mi

Slowest Pace

27:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47

2% of race

Time at Steady Pace

2:06:51

76% of race

Time at Slower Pace

36:38

22% of race

Average Pace: 12:41 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi3.3mi6.6mi9.8mi13.1mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
2M
2.00 mi07:09:2925:2512:4225:25
12:42
#6300
4M
4.00 mi07:32:2348:1912:0522:54
11:27
#5742
6M
6.00 mi07:56:541:12:5012:0824:31
12:15
#5589
8M
8.00 mi08:23:191:39:1512:2426:25
13:12
#5624
9.6M
9.60 mi08:38:271:54:2311:5515:08
9:27
#5314
10M
10.00 mi08:49:222:05:1812:3210:55
27:19
#5472
10.5M
10.50 mi08:52:092:08:0512:122:47
5:34
#5445
12M
12.00 mi09:17:522:33:4812:4925:43
17:09
#5376
Finish
13.11 mi09:30:202:46:1612:4112:28
11:14
#5222
Faster pace
Steady pace
Slower pace
Featured Segment

Garmin Challenge

Top 89%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

13:42

Segment Time

15:14/mi

Pace

0.90 mi

Distance

Overall

5857

Men

3314

Division

746

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
2M2.00 mi2.00 mi630035437864939(Top 75%)2894(Top 80%)656(Top 82%)
4M4.00 mi2.00 mi5742+5583342+201746+404805(Top 73%)2934(Top 81%)673(Top 85%)
6M6.00 mi2.00 mi5589+1533291+51740+65322(Top 81%)3171(Top 88%)725(Top 91%)
8M8.00 mi2.00 mi5624-353307-16748-85588(Top 85%)3283(Top 91%)736(Top 92%)
9.6M9.60 mi1.60 mi5314+3103178+129722+263322(Top 51%)2059(Top 57%)492(Top 62%)
10M10.00 mi0.40 mi5472-1583234-56733-116070(Top 92%)3395(Top 94%)756(Top 95%)
10.5M10.50 mi0.50 mi5445+273220+14732+14592(Top 70%)2799(Top 77%)638(Top 80%)
12M12.00 mi1.50 mi5376+693176+44720+124939(Top 75%)2894(Top 80%)656(Top 82%)
Finish13.11 mi1.11 mi5222+1543104+72702+184284(Top 65%)2609(Top 72%)608(Top 76%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 75%
~flat
+5ft-3ft

Overall

4939

Males

2894

M25-29

657

2M→4M

2.0 - 4.0 mi

Top 73%
×4story building
+67ft-69ft

Overall

4805

Males

2934

M25-29

675

4M→6M

4.0 - 6.0 mi

Top 81%
×9story building
+123ft-9ft

Overall

5322

Males

3171

M25-29

727

6M→8M

6.0 - 8.0 mi

Top 85%
×12story building
+166ft-53ft

Overall

5588

Males

3283

M25-29

737

8M→9.6M

8.0 - 9.6 mi

Top 51%
×13story building
+68ft-193ft

Overall

3322

Males

2059

M25-29

493

9.6M→10M

9.6 - 10.0 mi

Top 92%
×2story building
+0ft-24ft

Overall

6070

Males

3395

M25-29

757

10M→10.5M

10.0 - 10.5 mi

Top 70%
×6story building
+1ft-73ft

Overall

4592

Males

2799

M25-29

639

10.5M→12M

10.5 - 12.0 mi

Top 75%
×21story building
+280ft-26ft

Overall

4939

Males

2894

M25-29

657

12M→Finish

12.0 - 13.1 mi

Top 65%
×7story building
+14ft-89ft

Overall

4284

Males

2609

M25-29

608

Passing Analysis

Category:
Athletes Passed
1472*
Passed By
394
Net Change
+1078
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#6300
2M → 4M559*1+558#6300#5742
4M → 6M188*35+153#5742#5589
6M → 8M101*136-35#5589#5624
8M → 9.6M3177+310#5624#5314
9.6M → 10M5163-158#5314#5472
10M → 10.5M292+27#5472#5445
10.5M → 12M116*47+69#5445#5376
12M → Finish157*3+154#5376#5222
TOTALS1472*394+1078

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

📊

Passing Visuals

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