Isabella Alfonso

Bib: 12414•F•Age: 23

Berkeley, CA

0:00

0:00

/ mi

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Overall

#0 / 7100

Gender (Female)

#0 / 3107

F20-29

#0 / 410

Race Day Weather

56°/46°F

light rain

⏱️ 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

1.81M

12:06/mi

21:54

→ flat

5.34M

11:54/mi

1:03:54

↑ 80 ft↓ 74 ft

6.15M

13:28/mi

1:14:48

↑ 126 ft2.8% grade

10.54M

13:05/mi

2:12:14

↑ 230 ft↓ 361 ft0.6% grade

11.05M

17:56/mi

2:21:23

↑ 172 ft6.4% grade

Finish· 13.11 mi

13:35/mi

2:49:22

↑ 97 ft↓ 114 ft0.2% grade

The Course

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Half Splits

1st Half· via 6.15MFaster

Distance6.15 mi

Time1:14:48

Pace12:10 /mi

2nd Half

Distance6.96 mi

Time1:34:34

Pace13:35 /mi

📊Positive Split: 26.4% slower second half

Checkpoint Splits

Checkpoint	Distance	Time of Day	Time	Avg Pace	Segment Time	Segment Pace	Diff
1.81M	1.81 mi	07:04:20	21:54	12:06	21:54	12:06	-
5.34M	5.34 mi	07:46:20	1:03:54	11:58	42:00	11:54	-0:12
6.15M	6.15 mi	07:57:14	1:14:48	12:10	10:54	13:28	+1:34
10.54M	10.54 mi	08:54:40	2:12:14	12:33	57:26	13:05	-0:23
11.05M	11.05 mi	09:03:49	2:21:23	12:48	9:09	17:56	+4:51
Finish	13.11 mi	09:31:48	2:49:22	12:55	27:59	13:35	-4:21

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

11:54 /mi

Average Pace

12:55 /mi

Slowest Pace

17:56 /mi

Loading chart...

Fastest

Middle

Slowest

Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:03:54

38% of race

Time at Steady Pace

1:36:19

57% of race

Time at Slower Pace

9:09

5% of race

Average Pace: 12:55 /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.

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

Checkpoint	Distance	Time of Day	Time	Avg Pace	Segment	Pace	Rank
1.81M	1.81 mi	07:04:20	21:54	12:06	21:54	12:06	#6606
5.34M	5.34 mi	07:46:20	1:03:54	11:58	42:00	11:54	#6222
6.15M	6.15 mi	07:57:14	1:14:48	12:10	10:54	13:28	#6241
10.54M	10.54 mi	08:54:40	2:12:14	12:33	57:26	13:05	#6228
11.05M	11.05 mi	09:03:49	2:21:23	12:48	9:09	17:56	#6219
Finish	13.11 mi	09:31:48	2:49:22	12:55	27:59	13:35	#6176

Faster pace

Steady pace

Slower pace

Checkpoint and Segment Rankings

Checkpoint	Distance	Seg. Dist	Overall	Females	F20-29	Seg. Overall	Seg. Females	Seg. F20-29
1.81M	1.81 mi	1.81 mi	6606	2813	397	6606(Top 93%)	2813(Top 91%)	397(Top 97%)
5.34M	5.34 mi	3.53 mi	6222+384	2579+234	371+26	5977(Top 84%)	2432(Top 78%)	353(Top 86%)
6.15M	6.15 mi	0.81 mi	6241-19	2583-4	373-2	6277(Top 88%)	2598(Top 84%)	377(Top 92%)
10.54M	10.54 mi	4.39 mi	6228+13	2586-3	370+3	6207(Top 87%)	2597(Top 84%)	372(Top 91%)
11.05M	11.05 mi	0.51 mi	6219+9	2579+7	368+2	5740(Top 81%)	2338(Top 75%)	352(Top 86%)
Finish	13.11 mi	2.06 mi	6176+43	2566+13	373-5	6038(Top 85%)	2575(Top 83%)	372(Top 91%)

372

Passing Analysis

Category:

Athletes Passed

660*

Passed By

230

Net Change

+430

Segment	Athletes Passed	Passed By	Net Change	Start Rank	End Rank
Start → 1.81M	-	-	-	-	#6606
1.81M → 5.34M	410*	26	+384	#6606	#6222
5.34M → 6.15M	34	53	-19	#6222	#6241
6.15M → 10.54M	116*	103	+13	#6241	#6228
10.54M → 11.05M	21	12	+9	#6228	#6219
11.05M → Finish	79*	36	+43	#6219	#6176
TOTALS	660*	230	+430

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

📊

Passing Visuals

Category:

🔄Passing Circle

🌊Position Flow

🏃Race Lanes

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Results processed 27 days ago

Official Timing Data

Enhanced athlete results built from official timing data.

Race managed by

The San Francisco Marathon

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