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SF MARATHON 1ST HALF 2025

Chantalle Zavala

Lathrop, CA

Bib: 18479 F 35

0:00
0:00
/ mi
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Overall
#0 / 7100
Gender (Female)
#0 / 3107
Division (F35-39)
#0 / 389
Race Day Weather
56°/46°F
light rain

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
1.81M
9:30/mi
17:12
→ flat
5.34M
10:17/mi
53:29
↑ 80↓ 74
6.15M
12:00/mi
1:03:12
↑ 126
10.54M
11:25/mi
1:53:18
↑ 230↓ 361
11.05M
18:06/mi
2:02:32
↑ 172
Finish· 13.11 mi
14:15/mi
2:31:53
↑ 97↓ 114
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6.15M
1:03:1210:17 /mi⚡ faster
2nd Half
1:28:4112:45 /mi+40.3%
Positive split — 40.3% slower in the second half
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
1.81M
17:129:301.81 mi17:12
9:30
-
5.34M
53:2910:013.53 mi36:17
10:17
+0:47
6.15M
1:03:1210:170.81 mi9:43
12:00
+1:43
10.54M
1:53:1810:454.39 mi50:06
11:25
-0:35
11.05M
2:02:3211:050.51 mi9:14
18:06
+6:41
Finish(13.11 mi)
2:31:5311:352.06 mi29:21
14:15
-3:51
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

9:30 /mi

Average Pace

11:35 /mi

Slowest Pace

18:06 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

53:29

35% of race

Time at Steady Pace

59:49

39% of race

Time at Slower Pace

38:35

25% of race

Average Pace: 11:35 /mi

Loading chart...
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. DistOverallFemalesF35-39Seg. OverallSeg. FemalesSeg. F35-39
1.81M1.81 mi28888641152888864115
5.34M3.53 mi3569-6811174-310158-4338741319169
6.15M0.81 mi3841-2721300-126170-1252272019248
10.54M4.39 mi4268-4271517-217193-2347731812226
11.05M0.51 mi4459-1911614-97204-1158192382293
Finish(13.11 mi)2.06 mi4975-5161913-299235-3163482725335

Segment Performance Analysis

Start → 1.81M

0.0 - 1.8 mi

Top 41%
~flat
+4ft-3ft

Overall

2888

Females

864

F35-39

115

1.81M→5.34M

1.8 - 5.3 mi

Top 55%
×4story building
+80ft-74ft

Overall

3874

Females

1319

F35-39

169

5.34M→6.15M

5.3 - 6.2 mi

Top 74%
×10story building
+126ft-4ft

Overall

5227

Females

2019

F35-39

248

6.15M→10.54M

6.2 - 10.5 mi

Top 67%
×21story building
+230ft-361ft

Overall

4773

Females

1812

F35-39

226

10.54M→11.05M

10.5 - 11.1 mi

Top 82%
×14story building
+172ft-0ft

Overall

5819

Females

2382

F35-39

293

11.05M→Finish

11.1 - 13.1 mi

Top 89%
×7story building
+97ft-114ft

Overall

6348

Females

2725

F35-39

335

Passing Analysis

Category:
▼Net Change
0
0 passed by0* passed
SegmentMovementRank
Start → 1.81M-#2888
1.81M → 5.34M
74362*-681
#2888 → #3569
5.34M → 6.15M
2819-272
#3569 → #3841
6.15M → 10.54M
49164*-427
#3841 → #4268
10.54M → 11.05M
1987-191
#4268 → #4459
11.05M → Finish
53418*-516
#4459 → #4975
TOTALS
2247160*-2087
#2888 → #4975

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

Passing Visualized

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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

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