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SF MARATHON 1ST HALF 2023

James Welch

Oakland, CA

Bib: 9067 M 35

0:00
0:00
/ mi
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Overall
#0 / 6072
Top 44%
Gender (Male)
#0 / 3331
Division (M35-39)
#0 / 464
Race Day Weather
60°/50°F
overcast clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
10 ft elev
1.40M
8:25/mi
11:47
→ flat
11 ft elev
2.13M
17:54/mi
24:51
→ flat
13 ft elev
6.43M
11:48/mi
1:15:37
↑ 274↓ 780.9%
213 ft elev
6.62M
-38:-20/mi
1:08:31
↑ 161.6%
239 ft elev
10.65M
10:00/mi
1:48:50
↑ 153↓ 3611.0%
48 ft elev
Finish· 13.11 mi
9:55/mi
2:13:12
↑ 244↓ 1141.0%
205 ft elev
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

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Half Splits

1st Half· via 6.62M
Distance6.62 mi
Time1:08:31
Pace10:21 /mi
2nd Half✓ Faster
Distance6.49 mi
Time1:04:41
Pace9:58 /mi
📊Negative Split: 5.6% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
1.40M
1.40 mi06:47:5411:478:2511:47
8:25
-
2.13M
2.13 mi07:00:5824:5111:4013:04
17:54
+9:29
6.43M
6.43 mi07:51:441:15:3711:4650:46
11:48
-6:06
6.62M
6.62 mi07:44:381:08:3110:21
-38:-20
-50:08
10.65M
10.65 mi08:24:571:48:5010:1340:19
10:00
+48:20
Finish
13.11 mi08:49:192:13:1210:1024:22
9:55
-0:05

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

-39:-20 /mi

Average Pace

10:10 /mi

Slowest Pace

17:54 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:13:12

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:10 /mi

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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 mi06:47:5411:478:2511:47
8:25
#1443
2.13M
2.13 mi07:00:5824:5111:4013:04
17:54
#1676
6.43M
6.43 mi07:51:441:15:3711:4650:46
11:48
#2443
6.62M
6.62 mi07:44:381:08:3110:21
-38:-20
#2319
10.65M
10.65 mi08:24:571:48:5010:1340:19
10:00
#2541
Finish
13.11 mi08:49:192:13:1210:1024:22
9:55
#2659
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM35-39Seg. OverallSeg. MalesSeg. M35-39
1.40M1.40 mi1.40 mi144310151291443(Top 24%)1015(Top 30%)129(Top 28%)
2.13M2.13 mi0.73 mi1676-2331168-153147-182049(Top 34%)1387(Top 42%)185(Top 40%)
6.43M6.43 mi4.30 mi2443-7671644-476223-762915(Top 48%)1891(Top 57%)260(Top 56%)
6.62M6.62 mi0.19 mi2319+1241577+67209+14---
10.65M10.65 mi4.03 mi2541-2221694-117231-222958(Top 49%)1904(Top 57%)264(Top 57%)
Finish13.11 mi2.46 mi2659-1181754-60239-83213(Top 53%)2002(Top 60%)283(Top 61%)

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 24%
~flat
+3ft-2ft

Overall

1443

Males

1015

M35-39

129

1.40M→2.13M

1.4 - 2.1 mi

Top 34%
~flat
+3ft-1ft

Overall

2049

Males

1387

M35-39

186

2.13M→6.43M

2.1 - 6.4 mi

Top 48%
×17story building
+274ft-78ft

Overall

2915

Males

1891

M35-39

260

6.43M→6.62M

6.4 - 6.6 mi

×1story
+16ft-0ft

Overall

-

Males

-

M35-39

-

6.62M→10.65M

6.6 - 10.7 mi

Top 49%
×21story building
+153ft-361ft

Overall

2958

Males

1904

M35-39

264

10.65M→Finish

10.7 - 13.1 mi

Top 53%
×17story building
+244ft-114ft

Overall

3213

Males

2002

M35-39

283

Passing Analysis

Category:
Athletes Passed
307*
Passed By
1523
Net Change
-1216
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.40M----#1443
1.40M → 2.13M34267-233#1443#1676
2.13M → 6.43M31*798-767#1676#2443
6.43M → 6.62M14319+124#2443#2319
6.62M → 10.65M53*275-222#2319#2541
10.65M → Finish46*164-118#2541#2659
TOTALS307*1523-1216

* 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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