Jonathan Gelfond

Bib: 15794 M 20 US

Los Angeles, CA

0:00
0:00
/ mi
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Overall
#0 / 5177
Top 46%
Gender (Male)
#0 / 2862
M20-29
#0 / 280
Race Day Weather
56°/46°F
overcast clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
10 ft elev
2.13M
12:13/mi
26:02
→ flat
13 ft elev
6.62M
9:48/mi
1:10:03
299780.9%
239 ft elev
7.12M
12:34/mi
1:16:20
271.0%
269 ft elev
10.65M
9:33/mi
1:50:04
1273601.3%
48 ft elev
Finish· 13.11 mi
9:25/mi
2:13:14
2441141.0%
205 ft elev
Course Elevation
10277 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
Time1:10:03
Pace10:35 /mi
2nd Half✓ Faster
Distance6.49 mi
Time1:03:11
Pace9:44 /mi
📊Negative Split: 9.8% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2.13M
2.13 mi07:46:0126:0212:1326:02
12:13
-
6.62M
6.62 mi08:30:021:10:0310:3544:01
9:48
-2:25
7.12M
7.12 mi08:36:191:16:2010:436:17
12:34
+2:46
10.65M
10.65 mi09:10:031:50:0410:2033:44
9:33
-3:01
Finish
13.11 mi09:33:132:13:1410:1023:10
9:25
-0:08

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

9:25 /mi

Average Pace

10:10 /mi

Slowest Pace

12:34 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

1:40:55

76% of race

Time at Slower Pace

32:19

24% 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.

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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
2.13M
2.13 mi07:46:0126:0212:1326:02
12:13
#2278
6.62M
6.62 mi08:30:021:10:0310:3544:01
9:48
#2464
7.12M
7.12 mi08:36:191:16:2010:436:17
12:34
#2375
10.65M
10.65 mi09:10:031:50:0410:2033:44
9:33
#2434
Finish
13.11 mi09:33:132:13:1410:1023:10
9:25
#2401
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM20-29Seg. OverallSeg. MalesSeg. M20-29
2.13M2.13 mi2.13 mi227815551842278(Top 44%)1555(Top 54%)184(Top 66%)
6.62M6.62 mi4.49 mi2464-1861649-94193-92553(Top 49%)1681(Top 59%)192(Top 69%)
7.12M7.12 mi0.50 mi2375+891607+42188+51853(Top 36%)1322(Top 46%)172(Top 61%)
10.65M10.65 mi3.53 mi2434-591627-20191-32575(Top 50%)1683(Top 59%)188(Top 67%)
Finish13.11 mi2.46 mi2401+331602+25188+32385(Top 46%)1560(Top 55%)181(Top 65%)

Segment Performance Analysis

Start → 2.13M

0.0 - 2.1 mi

Top 44%
~flat
+6ft-3ft

Overall

2278

Males

1555

M20-24

184

2.13M→6.62M

2.1 - 6.6 mi

Top 49%
×19story building
+299ft-78ft

Overall

2553

Males

1681

M20-24

192

6.62M→7.12M

6.6 - 7.1 mi

Top 36%
×2story building
+27ft-0ft

Overall

1853

Males

1322

M20-24

172

7.12M→10.65M

7.1 - 10.7 mi

Top 50%
×21story building
+127ft-360ft

Overall

2575

Males

1683

M20-24

188

10.65M→Finish

10.7 - 13.1 mi

Top 46%
×17story building
+244ft-114ft

Overall

2385

Males

1560

M20-24

181

Passing Analysis

Category:
Athletes Passed
353*
Passed By
476
Net Change
-123
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2.13M----#2278
2.13M6.62M113*299-186#2278#2464
6.62M7.12M10314+89#2464#2375
7.12M10.65M54*113-59#2375#2434
10.65MFinish83*50+33#2434#2401
TOTALS353*476-123

* 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