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SF MARATHON 1ST HALF 2026

Rob Guzzo

Bib: 12031•M•Age: 49

San Francisco, CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 6575
Top 3%
Gender (Male)
#0 / 3619
Top 4%
Masters (Masters Men)
#0 / 1030
Top 2%
Division (M45-49)
#0 / 220
Top 2%
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
7:28/mi
14:57
→ flat
4M
7:25/mi
29:47
↑ 67↓ 69
6M
7:25/mi
44:37
↑ 1231.1%
8M
7:09/mi
58:55
↑ 166↓ 531.1%
9.6M
7:09/mi
1:10:22
↑ 68↓ 1931.5%
10M
13:36/mi
1:15:48
↓ 241.1%
10.5M
3:50/mi
1:17:43
↓ 732.7%
12M
10:07/mi
1:32:54
↑ 2803.2%
Finish· 13.11 mi
7:36/mi
1:41:20
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time44:37
Pace7:26 /mi
2nd Half
Distance7.11 mi
Time56:43
Pace7:59 /mi
📊Positive Split: 27.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi06:45:4314:577:2814:57
7:28
-
4M
4.00 mi07:00:3329:477:2714:50
7:25
-0:03
6M
6.00 mi07:15:2344:377:2614:50
7:25
0:00
8M
8.00 mi07:29:4158:557:2214:18
7:09
-0:16
9.6M
9.60 mi07:41:081:10:227:2011:27
7:09
0:00
10M
10.00 mi07:46:341:15:487:355:26
13:36
+6:27
10.5M
10.50 mi07:48:291:17:437:241:55
3:50
-9:46
12M
12.00 mi08:03:401:32:547:4515:11
10:07
+6:17
Finish
13.11 mi08:12:061:41:207:448:26
7:36
-2:31

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

3:50 /mi

Average Pace

7:44 /mi

Slowest Pace

13:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55

2% of race

Time at Steady Pace

1:18:48

78% of race

Time at Slower Pace

20:37

20% of race

Average Pace: 7:44 /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 mi06:45:4314:577:2814:57
7:28
#238
4M
4.00 mi07:00:3329:477:2714:50
7:25
#193
6M
6.00 mi07:15:2344:377:2614:50
7:25
#179
8M
8.00 mi07:29:4158:557:2214:18
7:09
#150
9.6M
9.60 mi07:41:081:10:227:2011:27
7:09
#165
10M
10.00 mi07:46:341:15:487:355:26
13:36
#168
10.5M
10.50 mi07:48:291:17:437:241:55
3:50
#170
12M
12.00 mi08:03:401:32:547:4515:11
10:07
#183
Finish
13.11 mi08:12:061:41:207:448:26
7:36
#174
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 4%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

7:21

Segment Time

8:10/mi

Pace

0.90 mi

Distance

Overall

251

Men

224

Division

8

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
2M2.00 mi2.00 mi2382126265(Top 4%)216(Top 6%)10(Top 5%)
4M4.00 mi2.00 mi193+45177+355+1167(Top 3%)152(Top 4%)5(Top 2%)
6M6.00 mi2.00 mi179+14163+145168(Top 3%)153(Top 4%)5(Top 2%)
8M8.00 mi2.00 mi150+29141+224+1134(Top 2%)121(Top 3%)5(Top 2%)
9.6M9.60 mi1.60 mi165-15152-114782(Top 12%)561(Top 16%)28(Top 13%)
10M10.00 mi0.40 mi168-31524283(Top 4%)228(Top 6%)11(Top 5%)
10.5M10.50 mi0.50 mi170-2154-24366(Top 6%)316(Top 9%)13(Top 6%)
12M12.00 mi1.50 mi183-13162-84265(Top 4%)216(Top 6%)10(Top 5%)
Finish13.11 mi1.11 mi174+9161+15-1335(Top 5%)292(Top 8%)14(Top 6%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 4%
~flat
+5ft-3ft

Overall

265

Males

216

M45-49

10

2M→4M

2.0 - 4.0 mi

Top 3%
×4story building
+67ft-69ft

Overall

167

Males

152

M45-49

5

4M→6M

4.0 - 6.0 mi

Top 3%
×9story building
+123ft-9ft

Overall

168

Males

153

M45-49

5

6M→8M

6.0 - 8.0 mi

Top 2%
×12story building
+166ft-53ft

Overall

134

Males

121

M45-49

5

8M→9.6M

8.0 - 9.6 mi

Top 12%
×13story building
+68ft-193ft

Overall

782

Males

561

M45-49

28

9.6M→10M

9.6 - 10.0 mi

Top 4%
×2story building
+0ft-24ft

Overall

283

Males

228

M45-49

11

10M→10.5M

10.0 - 10.5 mi

Top 6%
×6story building
+1ft-73ft

Overall

366

Males

316

M45-49

13

10.5M→12M

10.5 - 12.0 mi

Top 4%
×21story building
+280ft-26ft

Overall

265

Males

216

M45-49

10

12M→Finish

12.0 - 13.1 mi

Top 5%
×7story building
+14ft-89ft

Overall

335

Males

292

M45-49

14

Passing Analysis

Category:
Athletes Passed
133*
Passed By
69
Net Change
+64
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#238
2M → 4M494+45#238#193
4M → 6M184+14#193#179
6M → 8M312+29#179#150
8M → 9.6M520-15#150#165
9.6M → 10M36-3#165#168
10M → 10.5M02-2#168#170
10.5M → 12M922-13#170#183
12M → Finish18*9+9#183#174
TOTALS133*69+64

* 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