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SF MARATHON 1ST HALF 2026

Jiun-Jie Chiou

Bib: 17073•M•Age: 26

SUNNYVALE, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 21%
Gender (Male)
#0 / 3619
Top 30%
Division (M25-29)
#0 / 796
Top 33%
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
9:37/mi
19:14
→ flat
4M
9:13/mi
37:39
↑ 67↓ 69
6M
9:06/mi
55:51
↑ 1231.1%
8M
8:21/mi
1:12:33
↑ 166↓ 531.1%
9.6M
8:21/mi
1:25:54
↑ 68↓ 1931.5%
10M
17:09/mi
1:32:45
↓ 241.1%
10.5M
4:20/mi
1:34:55
↓ 732.7%
12M
11:57/mi
1:52:50
↑ 2803.2%
Finish· 13.11 mi
8:38/mi
2:02:25
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time55:51
Pace9:19 /mi
2nd Half
Distance7.11 mi
Time1:06:34
Pace9:22 /mi
📊Positive Split: 19.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi06:59:5819:149:3719:14
9:37
-
4M
4.00 mi07:18:2337:399:2518:25
9:13
-0:24
6M
6.00 mi07:36:3555:519:1918:12
9:06
-0:07
8M
8.00 mi07:53:171:12:339:0416:42
8:21
-0:45
9.6M
9.60 mi08:06:381:25:548:5713:21
8:21
0:00
10M
10.00 mi08:13:291:32:459:176:51
17:09
+8:48
10.5M
10.50 mi08:15:391:34:559:022:10
4:20
-12:49
12M
12.00 mi08:33:341:52:509:2417:55
11:57
+7:37
Finish
13.11 mi08:43:092:02:259:209:35
8:38
-3:19

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

4:20 /mi

Average Pace

9:20 /mi

Slowest Pace

17:09 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:10

2% of race

Time at Steady Pace

1:35:29

78% of race

Time at Slower Pace

24:46

20% of race

Average Pace: 9:20 /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 mi06:59:5819:149:3719:14
9:37
#2442
4M
4.00 mi07:18:2337:399:2518:25
9:13
#2028
6M
6.00 mi07:36:3555:519:1918:12
9:06
#1857
8M
8.00 mi07:53:171:12:339:0416:42
8:21
#1407
9.6M
9.60 mi08:06:381:25:548:5713:21
8:21
#1509
10M
10.00 mi08:13:291:32:459:176:51
17:09
#1519
10.5M
10.50 mi08:15:391:34:559:022:10
4:20
#1513
12M
12.00 mi08:33:341:52:509:2417:55
11:57
#1429
Finish
13.11 mi08:43:092:02:259:209:35
8:38
#1382
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 26%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

9:01

Segment Time

10:01/mi

Pace

0.90 mi

Distance

Overall

1719

Men

1275

Division

310

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
2M2.00 mi2.00 mi244217354081184(Top 18%)908(Top 25%)208(Top 26%)
4M4.00 mi2.00 mi2028+4141488+247356+521722(Top 26%)1305(Top 36%)312(Top 39%)
6M6.00 mi2.00 mi1857+1711388+100340+161544(Top 23%)1186(Top 33%)287(Top 36%)
8M8.00 mi2.00 mi1407+4501112+276270+70682(Top 10%)587(Top 16%)145(Top 18%)
9.6M9.60 mi1.60 mi1509-1021168-56284-141926(Top 29%)1276(Top 35%)300(Top 38%)
10M10.00 mi0.40 mi1519-101179-11285-11892(Top 29%)1367(Top 38%)328(Top 41%)
10.5M10.50 mi0.50 mi1513+61172+7283+21378(Top 21%)1072(Top 30%)259(Top 33%)
12M12.00 mi1.50 mi1429+841104+68270+131184(Top 18%)908(Top 25%)208(Top 26%)
Finish13.11 mi1.11 mi1382+471080+24263+71242(Top 19%)958(Top 26%)231(Top 29%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 18%
~flat
+5ft-3ft

Overall

1184

Males

908

M25-29

208

2M→4M

2.0 - 4.0 mi

Top 26%
×4story building
+67ft-69ft

Overall

1722

Males

1305

M25-29

312

4M→6M

4.0 - 6.0 mi

Top 23%
×9story building
+123ft-9ft

Overall

1544

Males

1186

M25-29

287

6M→8M

6.0 - 8.0 mi

Top 10%
×12story building
+166ft-53ft

Overall

682

Males

587

M25-29

145

8M→9.6M

8.0 - 9.6 mi

Top 29%
×13story building
+68ft-193ft

Overall

1926

Males

1276

M25-29

300

9.6M→10M

9.6 - 10.0 mi

Top 29%
×2story building
+0ft-24ft

Overall

1892

Males

1367

M25-29

329

10M→10.5M

10.0 - 10.5 mi

Top 21%
×6story building
+1ft-73ft

Overall

1378

Males

1072

M25-29

260

10.5M→12M

10.5 - 12.0 mi

Top 18%
×21story building
+280ft-26ft

Overall

1184

Males

908

M25-29

208

12M→Finish

12.0 - 13.1 mi

Top 19%
×7story building
+14ft-89ft

Overall

1242

Males

958

M25-29

231

Passing Analysis

Category:
Athletes Passed
1294*
Passed By
234
Net Change
+1060
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#2442
2M → 4M4239+414#2442#2028
4M → 6M1798+171#2028#1857
6M → 8M453*3+450#1857#1407
8M → 9.6M44146-102#1407#1509
9.6M → 10M2030-10#1509#1519
10M → 10.5M93+6#1519#1513
10.5M → 12M11026+84#1513#1429
12M → Finish56*9+47#1429#1382
TOTALS1294*234+1060

* 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