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SF MARATHON 1ST HALF 2026

Jonathan Tuck

Bib: 20296•M•Age: 39

Redwood City, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 43%
Gender (Male)
#0 / 3619
Division (M35-39)
#0 / 582
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
10:13/mi
20:26
→ flat
4M
10:29/mi
41:23
↑ 67↓ 69
6M
10:13/mi
1:01:49
↑ 1231.1%
8M
10:03/mi
1:21:55
↑ 166↓ 531.1%
9.6M
10:03/mi
1:37:59
↑ 68↓ 1931.5%
10M
17:36/mi
1:45:01
↓ 241.1%
10.5M
4:38/mi
1:47:20
↓ 732.7%
12M
14:02/mi
2:08:23
↑ 2803.2%
Finish· 13.11 mi
9:14/mi
2:18:38
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:01:49
Pace10:18 /mi
2nd Half
Distance7.11 mi
Time1:16:49
Pace10:48 /mi
📊Positive Split: 24.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:06:1220:2610:1320:26
10:13
-
4M
4.00 mi07:27:0941:2310:2120:57
10:29
+0:16
6M
6.00 mi07:47:351:01:4910:1820:26
10:13
-0:16
8M
8.00 mi08:07:411:21:5510:1420:06
10:03
-0:10
9.6M
9.60 mi08:23:451:37:5910:1216:04
10:03
0:00
10M
10.00 mi08:30:471:45:0110:307:02
17:36
+7:33
10.5M
10.50 mi08:33:061:47:2010:132:19
4:38
-12:58
12M
12.00 mi08:54:092:08:2310:4221:03
14:02
+9:24
Finish
13.11 mi09:04:242:18:3810:3510:15
9:14
-4:48

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

4:38 /mi

Average Pace

10:35 /mi

Slowest Pace

17:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:19

2% of race

Time at Steady Pace

1:48:14

78% of race

Time at Slower Pace

28:05

20% of race

Average Pace: 10:34 /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 mi07:06:1220:2610:1320:26
10:13
#3395
4M
4.00 mi07:27:0941:2310:2120:57
10:29
#3454
6M
6.00 mi07:47:351:01:4910:1820:26
10:13
#3218
8M
8.00 mi08:07:411:21:5510:1420:06
10:03
#2973
9.6M
9.60 mi08:23:451:37:5910:1216:04
10:03
#3120
10M
10.00 mi08:30:471:45:0110:307:02
17:36
#3003
10.5M
10.50 mi08:33:061:47:2010:132:19
4:38
#2981
12M
12.00 mi08:54:092:08:2310:4221:03
14:02
#2924
Finish
13.11 mi09:04:242:18:3810:3510:15
9:14
#2805
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 32%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

9:21

Segment Time

10:24/mi

Pace

0.90 mi

Distance

Overall

2104

Men

1498

Division

248

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM35-39Seg. OverallSeg. MalesSeg. M35-39
2M2.00 mi2.00 mi339522533922767(Top 42%)1857(Top 51%)315(Top 54%)
4M4.00 mi2.00 mi3454-592296-43395-33486(Top 53%)2308(Top 64%)394(Top 68%)
6M6.00 mi2.00 mi3218+2362175+121366+292939(Top 45%)2029(Top 56%)342(Top 59%)
8M8.00 mi2.00 mi2973+2452059+116351+152429(Top 37%)1756(Top 49%)308(Top 53%)
9.6M9.60 mi1.60 mi3120-1472122-63362-114049(Top 62%)2431(Top 67%)409(Top 70%)
10M10.00 mi0.40 mi3003+1172046+76349+132166(Top 33%)1518(Top 42%)252(Top 43%)
10.5M10.50 mi0.50 mi2981+222033+133492206(Top 34%)1566(Top 43%)267(Top 46%)
12M12.00 mi1.50 mi2924+571990+43341+82767(Top 42%)1857(Top 51%)315(Top 54%)
Finish13.11 mi1.11 mi2805+1191921+69329+121946(Top 30%)1401(Top 39%)224(Top 38%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 42%
~flat
+5ft-3ft

Overall

2767

Males

1857

M35-39

315

2M→4M

2.0 - 4.0 mi

Top 53%
×4story building
+67ft-69ft

Overall

3486

Males

2308

M35-39

394

4M→6M

4.0 - 6.0 mi

Top 45%
×9story building
+123ft-9ft

Overall

2939

Males

2029

M35-39

342

6M→8M

6.0 - 8.0 mi

Top 37%
×12story building
+166ft-53ft

Overall

2429

Males

1756

M35-39

308

8M→9.6M

8.0 - 9.6 mi

Top 62%
×13story building
+68ft-193ft

Overall

4049

Males

2431

M35-39

409

9.6M→10M

9.6 - 10.0 mi

Top 33%
×2story building
+0ft-24ft

Overall

2166

Males

1518

M35-39

252

10M→10.5M

10.0 - 10.5 mi

Top 34%
×6story building
+1ft-73ft

Overall

2206

Males

1566

M35-39

267

10.5M→12M

10.5 - 12.0 mi

Top 42%
×21story building
+280ft-26ft

Overall

2767

Males

1857

M35-39

315

12M→Finish

12.0 - 13.1 mi

Top 30%
×7story building
+14ft-89ft

Overall

1946

Males

1401

M35-39

224

Passing Analysis

Category:
Athletes Passed
1110*
Passed By
520
Net Change
+590
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#3395
2M → 4M145204-59#3395#3454
4M → 6M25822+236#3454#3218
6M → 8M283*38+245#3218#2973
8M → 9.6M39186-147#2973#3120
9.6M → 10M1236+117#3120#3003
10M → 10.5M242+22#3003#2981
10.5M → 12M11053+57#2981#2924
12M → Finish128*9+119#2924#2805
TOTALS1110*520+590

* 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