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SF MARATHON 1ST HALF 2026

John Tsou

Bib: 13813•M•Age: 46

San Francisco, CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 6575
Top 49%
Gender (Male)
#0 / 3619
Masters (Masters Men)
#0 / 1030
Top 49%
Division (M45-49)
#0 / 220
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
10:33/mi
21:07
→ flat
4M
10:24/mi
41:54
↑ 67↓ 69
6M
11:23/mi
1:04:40
↑ 1231.1%
8M
9:51/mi
1:24:22
↑ 166↓ 531.1%
9.6M
9:51/mi
1:40:08
↑ 68↓ 1931.5%
10M
20:29/mi
1:48:19
↓ 241.1%
10.5M
4:58/mi
1:50:48
↓ 732.7%
12M
13:51/mi
2:11:35
↑ 2803.2%
Finish· 13.11 mi
10:03/mi
2:22:44
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:04:40
Pace10:47 /mi
2nd Half
Distance7.11 mi
Time1:18:04
Pace10:59 /mi
📊Positive Split: 20.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:07:1821:0710:3321:07
10:33
-
4M
4.00 mi07:28:0541:5410:2920:47
10:24
-0:09
6M
6.00 mi07:50:511:04:4010:4722:46
11:23
+0:59
8M
8.00 mi08:10:331:24:2210:3319:42
9:51
-1:32
9.6M
9.60 mi08:26:191:40:0810:2615:46
9:51
0:00
10M
10.00 mi08:34:301:48:1910:508:11
20:29
+10:38
10.5M
10.50 mi08:36:591:50:4810:332:29
4:58
-15:31
12M
12.00 mi08:57:462:11:3510:5820:47
13:51
+8:53
Finish
13.11 mi09:08:552:22:4410:5311:09
10:03
-3:48

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

4:58 /mi

Average Pace

10:53 /mi

Slowest Pace

20:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:29

2% of race

Time at Steady Pace

1:51:17

78% of race

Time at Slower Pace

28:58

20% of race

Average Pace: 10:53 /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 mi07:07:1821:0710:3321:07
10:33
#4019
4M
4.00 mi07:28:0541:5410:2920:47
10:24
#3663
6M
6.00 mi07:50:511:04:4010:4722:46
11:23
#3888
8M
8.00 mi08:10:331:24:2210:3319:42
9:51
#3373
9.6M
9.60 mi08:26:191:40:0810:2615:46
9:51
#3410
10M
10.00 mi08:34:301:48:1910:508:11
20:29
#3412
10.5M
10.50 mi08:36:591:50:4810:332:29
4:58
#3400
12M
12.00 mi08:57:462:11:3510:5820:47
13:51
#3250
Finish
13.11 mi09:08:552:22:4410:5311:09
10:03
#3201
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 53%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

10:40

Segment Time

11:51/mi

Pace

0.90 mi

Distance

Overall

3490

Men

2251

Division

120

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
2M2.00 mi2.00 mi401925911412609(Top 40%)1766(Top 49%)90(Top 41%)
4M4.00 mi2.00 mi3663+3562405+186133+83354(Top 51%)2244(Top 62%)125(Top 57%)
6M6.00 mi2.00 mi3888-2252527-122138-54349(Top 66%)2736(Top 76%)149(Top 68%)
8M8.00 mi2.00 mi3373+5152255+272123+152219(Top 34%)1628(Top 45%)85(Top 39%)
9.6M9.60 mi1.60 mi3410-372274-19122+13818(Top 58%)2312(Top 64%)122(Top 55%)
10M10.00 mi0.40 mi3412-22273+1121+13715(Top 57%)2355(Top 65%)129(Top 59%)
10.5M10.50 mi0.50 mi3400+122265+81213049(Top 46%)2031(Top 56%)100(Top 45%)
12M12.00 mi1.50 mi3250+1502171+94114+72609(Top 40%)1766(Top 49%)90(Top 41%)
Finish13.11 mi1.11 mi3201+492143+28111+32911(Top 44%)1925(Top 53%)94(Top 43%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 40%
~flat
+5ft-3ft

Overall

2609

Males

1766

M45-49

90

2M→4M

2.0 - 4.0 mi

Top 51%
×4story building
+67ft-69ft

Overall

3354

Males

2244

M45-49

125

4M→6M

4.0 - 6.0 mi

Top 66%
×9story building
+123ft-9ft

Overall

4349

Males

2736

M45-49

149

6M→8M

6.0 - 8.0 mi

Top 34%
×12story building
+166ft-53ft

Overall

2219

Males

1628

M45-49

85

8M→9.6M

8.0 - 9.6 mi

Top 58%
×13story building
+68ft-193ft

Overall

3818

Males

2312

M45-49

122

9.6M→10M

9.6 - 10.0 mi

Top 57%
×2story building
+0ft-24ft

Overall

3715

Males

2355

M45-49

129

10M→10.5M

10.0 - 10.5 mi

Top 46%
×6story building
+1ft-73ft

Overall

3049

Males

2031

M45-49

100

10.5M→12M

10.5 - 12.0 mi

Top 40%
×21story building
+280ft-26ft

Overall

2609

Males

1766

M45-49

90

12M→Finish

12.0 - 13.1 mi

Top 44%
×7story building
+14ft-89ft

Overall

2911

Males

1925

M45-49

94

Passing Analysis

Category:
Athletes Passed
1353*
Passed By
535
Net Change
+818
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#4019
2M → 4M39539+356#4019#3663
4M → 6M49*274-225#3663#3888
6M → 8M521*6+515#3888#3373
8M → 9.6M97134-37#3373#3410
9.6M → 10M3638-2#3410#3412
10M → 10.5M164+12#3412#3400
10.5M → 12M17222+150#3400#3250
12M → Finish67*18+49#3250#3201
TOTALS1353*535+818

* 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