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SF MARATHON 1ST HALF 2023

Alifya Parekh

Jersey City, NJ

Bib: 12509 F 30

0:00
0:00
/ mi
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Overall
#0 / 6072
Gender (Female)
#0 / 2732
Top 44%
Division (F30-34)
#0 / 557
Top 46%
Race Day Weather
60°/50°F
overcast clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
1.40M
8:51/mi
12:24
→ flat
2.13M
19:13/mi
26:26
→ flat
6.43M
12:14/mi
1:19:02
↑ 274↓ 78
6.62M
-37:-17/mi
1:12:08
↑ 16
10.65M
10:35/mi
1:54:48
↑ 153↓ 361
Finish· 13.11 mi
9:59/mi
2:19:22
↑ 244↓ 114
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6.62M
1:12:0810:54 /mi+6.8%
2nd Half
1:07:1410:22 /mi✓ faster
Negative split — 6.8% faster in the second half
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
1.40M
12:248:511.40 mi12:24
8:51
-
2.13M
26:2612:250.73 mi14:02
19:13
+10:22
6.43M
1:19:0212:174.30 mi52:36
12:14
-6:59
6.62M
1:12:0810:540.19 mi
-37:-17
-49:31
10.65M
1:54:4810:474.03 mi42:40
10:35
+47:52
Finish(13.11 mi)
2:19:2210:382.46 mi24:34
9:59
-0:36
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

-38:-17 /mi

Average Pace

10:38 /mi

Slowest Pace

19:13 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:19:22

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:38 /mi

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Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi3.3mi6.6mi9.8mi13.1mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF30-34Seg. OverallSeg. FemalesSeg. F30-34
1.40M1.40 mi21476831582147683158
2.13M0.73 mi2586-439864-181189-3131531136233
6.43M4.30 mi3085-4991102-238225-3633761246256
6.62M0.19 mi3070+151098+4228-3---
10.65M4.03 mi3292-2221195-97249-2137021421299
Finish(13.11 mi)2.46 mi3295-31210-15254-533081257261

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 35%
~flat
+3ft-2ft

Overall

2147

Females

683

F30-34

158

1.40M→2.13M

1.4 - 2.1 mi

Top 52%
~flat
+3ft-1ft

Overall

3153

Females

1136

F30-34

233

2.13M→6.43M

2.1 - 6.4 mi

Top 56%
×17story building
+274ft-78ft

Overall

3376

Females

1246

F30-34

256

6.43M→6.62M

6.4 - 6.6 mi

×1story
+16ft-0ft

Overall

-

Females

-

F30-34

-

6.62M→10.65M

6.6 - 10.7 mi

Top 61%
×21story building
+153ft-361ft

Overall

3702

Females

1421

F30-34

299

10.65M→Finish

10.7 - 13.1 mi

Top 54%
×17story building
+244ft-114ft

Overall

3308

Females

1257

F30-34

261

Passing Analysis

Category:
▼Net Change
0
0 passed by0* passed
SegmentMovementRank
Start → 1.40M-#2147
1.40M → 2.13M
48243-439
#2147 → #2586
2.13M → 6.43M
59798*-499
#2586 → #3085
6.43M → 6.62M
5671+15
#3085 → #3070
6.62M → 10.65M
28664*-222
#3070 → #3292
10.65M → Finish
8683*-3
#3292 → #3295
TOTALS
1507359*-1148
#2147 → #3295

* Includes athletes who did not complete a segment (DNF/DNQ).

Passing Visualized

Category:
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Passing Circle

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Position Flow

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Race Lanes

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Public Race Data

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The San Francisco Marathon

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