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SF MARATHON 1ST HALF 2023

Jason Day

Bib: 12203•M•Age: 46

Belvedere Tiburon, CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 6072
Top 50%
Gender (Male)
#0 / 3331
Masters (Masters Men)
#0 / 1028
Top 47%
Division (M45-49)
#0 / 241
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
9:06/mi
12:45
→ flat
2.13M
18:49/mi
26:29
→ flat
6.43M
12:15/mi
1:19:08
↑ 274↓ 780.9%
6.62M
-42:-17/mi
1:11:17
↑ 161.6%
10.65M
10:04/mi
1:51:52
↑ 153↓ 3611.0%
Finish· 13.11 mi
10:08/mi
2:16:47
↑ 244↓ 1141.0%

The Course

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Half Splits

1st Half· via 6.62M
Distance6.62 mi
Time1:11:17
Pace10:46 /mi
2nd Half✓ Faster
Distance6.49 mi
Time1:05:30
Pace10:06 /mi
📊Negative Split: 8.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
1.40M
1.40 mi06:58:1812:459:0612:45
9:06
-
2.13M
2.13 mi07:12:0226:2912:2613:44
18:49
+9:43
6.43M
6.43 mi08:04:411:19:0812:1852:39
12:15
-6:34
6.62M
6.62 mi07:56:501:11:1710:46
-42:-17
-54:32
10.65M
10.65 mi08:37:251:51:5210:3040:35
10:04
+52:21
Finish
13.11 mi09:02:202:16:4710:2624:55
10:08
+0:04

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

-43:-17 /mi

Average Pace

10:26 /mi

Slowest Pace

18:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:16:47

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:26 /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 mi06:58:1812:459:0612:45
9:06
#2578
2.13M
2.13 mi07:12:0226:2912:2613:44
18:49
#2611
6.43M
6.43 mi08:04:411:19:0812:1852:39
12:15
#3103
6.62M
6.62 mi07:56:501:11:1710:46
-42:-17
#2914
10.65M
10.65 mi08:37:251:51:5210:3040:35
10:04
#2946
Finish
13.11 mi09:02:202:16:4710:2624:55
10:08
#3030
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
1.40M1.40 mi1.40 mi257817171112578(Top 42%)1717(Top 52%)111(Top 46%)
2.13M2.13 mi0.73 mi2611-331735-18113-22820(Top 46%)1837(Top 55%)119(Top 49%)
6.43M6.43 mi4.30 mi3103-4921992-257132-193388(Top 56%)2134(Top 64%)143(Top 59%)
6.62M6.62 mi0.19 mi2914+1891891+101126+6---
10.65M10.65 mi4.03 mi2946-321912-21129-33065(Top 50%)1961(Top 59%)127(Top 53%)
Finish13.11 mi2.46 mi3030-841953-41130-13496(Top 58%)2157(Top 65%)143(Top 59%)

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 42%
~flat
+3ft-2ft

Overall

2578

Males

1717

M45-49

111

1.40M→2.13M

1.4 - 2.1 mi

Top 46%
~flat
+3ft-1ft

Overall

2820

Males

1837

M45-49

121

2.13M→6.43M

2.1 - 6.4 mi

Top 56%
×17story building
+274ft-78ft

Overall

3388

Males

2134

M45-49

143

6.43M→6.62M

6.4 - 6.6 mi

×1story
+16ft-0ft

Overall

-

Males

-

M45-49

-

6.62M→10.65M

6.6 - 10.7 mi

Top 50%
×21story building
+153ft-361ft

Overall

3065

Males

1961

M45-49

127

10.65M→Finish

10.7 - 13.1 mi

Top 58%
×17story building
+244ft-114ft

Overall

3496

Males

2157

M45-49

143

Passing Analysis

Category:
Athletes Passed
645*
Passed By
1097
Net Change
-452
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.40M----#2578
1.40M → 2.13M155188-33#2578#2611
2.13M → 6.43M105*597-492#2611#3103
6.43M → 6.62M20112+189#3103#2914
6.62M → 10.65M119*151-32#2914#2946
10.65M → Finish65*149-84#2946#3030
TOTALS645*1097-452

* 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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