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SF MARATHON 1ST HALF 2023

Stephen Guerzon

Bib: 10677•M•Age: 58

Fremont, CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 6072
Top 34%
Gender (Male)
#0 / 3331
Top 43%
Masters (Masters Men)
#0 / 1028
Top 32%
Division (M55-59)
#0 / 129
Top 27%
Race Day Weather
60°/50°F
overcast 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
1.40M
8:16/mi
11:35
→ flat
2.13M
17:14/mi
24:10
→ flat
6.43M
11:18/mi
1:12:45
↑ 274↓ 780.9%
6.62M
-36:-19/mi
1:06:02
↑ 161.6%
10.65M
9:42/mi
1:45:08
↑ 153↓ 3611.0%
Finish· 13.11 mi
9:12/mi
2:07:45
↑ 244↓ 1141.0%

The Course

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Half Splits

1st Half· via 6.62M
Distance6.62 mi
Time1:06:02
Pace9:58 /mi
2nd Half✓ Faster
Distance6.49 mi
Time1:01:43
Pace9:31 /mi
📊Negative Split: 6.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
1.40M
1.40 mi06:45:0911:358:1611:35
8:16
-
2.13M
2.13 mi06:57:4424:1011:2112:35
17:14
+8:58
6.43M
6.43 mi07:46:191:12:4511:1948:35
11:18
-5:56
6.62M
6.62 mi07:39:361:06:029:58
-36:-19
-47:37
10.65M
10.65 mi08:18:421:45:089:5239:06
9:42
+46:01
Finish
13.11 mi08:41:192:07:459:4522:37
9:12
-0:30

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

-37:-19 /mi

Average Pace

9:45 /mi

Slowest Pace

17:14 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:07:45

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:45 /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
1.40M
1.40 mi06:45:0911:358:1611:35
8:16
#1236
2.13M
2.13 mi06:57:4424:1011:2112:35
17:14
#1333
6.43M
6.43 mi07:46:191:12:4511:1948:35
11:18
#1902
6.62M
6.62 mi07:39:361:06:029:58
-36:-19
#1793
10.65M
10.65 mi08:18:421:45:089:5239:06
9:42
#2039
Finish
13.11 mi08:41:192:07:459:4522:37
9:12
#2088
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
1.40M1.40 mi1.40 mi1236885221236(Top 20%)885(Top 27%)22(Top 17%)
2.13M2.13 mi0.73 mi1333-97951-6621+11550(Top 26%)1079(Top 32%)26(Top 20%)
6.43M6.43 mi4.30 mi1902-5691316-36531-102299(Top 38%)1549(Top 47%)40(Top 31%)
6.62M6.62 mi0.19 mi1793+1091250+6631---
10.65M10.65 mi4.03 mi2039-2461397-14734-32580(Top 42%)1699(Top 51%)40(Top 31%)
Finish13.11 mi2.46 mi2088-491422-2535-12364(Top 39%)1544(Top 46%)37(Top 29%)

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 20%
~flat
+3ft-2ft

Overall

1236

Males

885

M55-59

22

1.40M→2.13M

1.4 - 2.1 mi

Top 26%
~flat
+3ft-1ft

Overall

1550

Males

1079

M55-59

26

2.13M→6.43M

2.1 - 6.4 mi

Top 38%
×17story building
+274ft-78ft

Overall

2299

Males

1549

M55-59

40

6.43M→6.62M

6.4 - 6.6 mi

×1story
+16ft-0ft

Overall

-

Males

-

M55-59

-

6.62M→10.65M

6.6 - 10.7 mi

Top 42%
×21story building
+153ft-361ft

Overall

2580

Males

1699

M55-59

40

10.65M→Finish

10.7 - 13.1 mi

Top 39%
×17story building
+244ft-114ft

Overall

2364

Males

1544

M55-59

37

Passing Analysis

Category:
Athletes Passed
322*
Passed By
1174
Net Change
-852
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.40M----#1236
1.40M → 2.13M64161-97#1236#1333
2.13M → 6.43M30*599-569#1333#1902
6.43M → 6.62M12920+109#1902#1793
6.62M → 10.65M36*282-246#1793#2039
10.65M → Finish63*112-49#2039#2088
TOTALS322*1174-852

* 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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The San Francisco Marathon

The San Francisco Marathon

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