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SF MARATHON 2ND HALF 2026

Johnson Xiong

Bib: 23080•M•Age: 35

San Francisco, CA

0:00
0:00
/ mi
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Overall
#0 / 3840
Top 26%
Gender (Male)
#0 / 2065
Top 34%
Division (M35-39)
#0 / 309
Top 40%
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Course Elevation
9–292 ft
≈
×24story building
•▲ 548 ft climb · ▼ 587 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
8:39/mi
17:18
↑ 138↓ 680.7%
4M
8:20/mi
33:57
↑ 1631.4%
6M
10:41/mi
55:19
↑ 55↓ 830.3%
8M
6:41/mi
1:08:42
↑ 65↓ 1510.8%
10M
9:01/mi
1:26:43
↑ 61↓ 1741.1%
12M
9:52/mi
1:46:28
↑ 41↓ 530.1%
Finish· 13.11 mi
9:02/mi
1:56:29
→ flat

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time55:19
Pace9:13 /mi
2nd Half
Distance7.11 mi
Time1:01:10
Pace8:36 /mi
📊Positive Split: 10.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi08:47:3917:188:3917:18
8:39
-
4M
4.00 mi09:04:1833:578:2916:39
8:20
-0:19
6M
6.00 mi09:25:4055:199:1321:22
10:41
+2:21
8M
8.00 mi09:39:031:08:428:3513:23
6:41
-4:00
10M
10.00 mi09:57:041:26:438:4018:01
9:01
+2:20
12M
12.00 mi10:16:491:46:288:5219:45
9:52
+0:51
Finish
13.11 mi10:26:501:56:298:5310:01
9:02
-0:50

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

6:41 /mi

Average Pace

8:53 /mi

Slowest Pace

10:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

30:02

26% of race

Time at Steady Pace

45:20

39% of race

Time at Slower Pace

41:07

35% of race

Average Pace: 8:53 /mi

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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 mi08:47:3917:188:3917:18
8:39
#914
4M
4.00 mi09:04:1833:578:2916:39
8:20
#957
6M
6.00 mi09:25:4055:199:1321:22
10:41
#952
8M
8.00 mi09:39:031:08:428:3513:23
6:41
#964
10M
10.00 mi09:57:041:26:438:4018:01
9:01
#953
12M
12.00 mi10:16:491:46:288:5219:45
9:52
#995
Finish
13.11 mi10:26:501:56:298:5310:01
9:02
#987
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM35-39Seg. OverallSeg. MalesSeg. M35-39
2M2.00 mi2.00 mi9146771161257(Top 33%)861(Top 42%)145(Top 47%)
4M4.00 mi2.00 mi957-43695-18119-31065(Top 28%)755(Top 37%)132(Top 43%)
6M6.00 mi2.00 mi952+5691+4120-1998(Top 26%)719(Top 35%)126(Top 41%)
8M8.00 mi2.00 mi964-12698-7123-31016(Top 26%)734(Top 36%)121(Top 39%)
10M10.00 mi2.00 mi953+11690+8119+4945(Top 25%)690(Top 33%)113(Top 37%)
12M12.00 mi2.00 mi995-42718-28122-31257(Top 33%)861(Top 42%)145(Top 47%)
Finish13.11 mi1.11 mi987+8712+6124-2982(Top 26%)692(Top 34%)118(Top 38%)

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 33%
×9story building
+138ft-68ft

Overall

1257

Males

861

M35-39

145

2M→4M

2.0 - 4.0 mi

Top 28%
×13story building
+163ft-19ft

Overall

1065

Males

755

M35-39

132

4M→6M

4.0 - 6.0 mi

Top 26%
×4story building
+55ft-83ft

Overall

998

Males

719

M35-39

126

6M→8M

6.0 - 8.0 mi

Top 26%
×10story building
+65ft-151ft

Overall

1016

Males

734

M35-39

121

8M→10M

8.0 - 10.0 mi

Top 25%
×10story building
+61ft-174ft

Overall

945

Males

690

M35-39

113

10M→12M

10.0 - 12.0 mi

Top 33%
×3story building
+41ft-53ft

Overall

1257

Males

861

M35-39

145

12M→Finish

12.0 - 13.1 mi

Top 26%
×1human
+6ft-6ft

Overall

982

Males

692

M35-39

118

Passing Analysis

Category:
Athletes Passed
155*
Passed By
228
Net Change
-73
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#914
2M → 4M4487-43#914#957
4M → 6M2924+5#957#952
6M → 8M1527-12#952#964
8M → 10M30*19+11#964#953
10M → 12M1557-42#953#995
12M → Finish2214+8#995#987
TOTALS155*228-73

* 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