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SF MARATHON 1ST HALF 2026

Finn Chalmers

Los Altos, CA

Bib: 20069 M 22

0:00
0:00
/ mi
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Overall
#0 / 6575
Gender (Male)
#0 / 3619
M20-29
#0 / 358
Race Day Weather
59°/49°F
scattered clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
10 ft elev
2M
12:12/mi
24:25
→ flat
12 ft elev
4M
12:02/mi
48:29
↑ 67↓ 69
10 ft elev
6M
11:56/mi
1:12:21
↑ 1231.1%
126 ft elev
8M
11:57/mi
1:36:14
↑ 166↓ 531.1%
246 ft elev
9.6M
11:57/mi
1:55:21
↑ 68↓ 1931.5%
126 ft elev
10M
22:52/mi
2:04:29
↓ 241.1%
90 ft elev
10.5M
7:30/mi
2:08:14
↓ 732.7%
18 ft elev
12M
14:28/mi
2:29:56
↑ 2803.2%
272 ft elev
Finish· 13.11 mi
11:20/mi
2:42:30
↑ 14↓ 891.3%
205 ft elev
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6M
1:12:2112:04 /mi⚡ faster
2nd Half
1:30:0912:41 /mi+24.6%
Positive split — 24.6% 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
2M
24:2512:122.00 mi24:25
12:12
-
4M
48:2912:072.00 mi24:04
12:02
-0:10
6M
1:12:2112:042.00 mi23:52
11:56
-0:06
8M
1:36:1412:022.00 mi23:53
11:57
+0:01
9.6M
1:55:2112:011.60 mi19:07
11:57
0:00
10M
2:04:2912:270.40 mi9:08
22:52
+10:55
10.5M
2:08:1412:130.50 mi3:45
7:30
-15:22
12M
2:29:5612:301.50 mi21:42
14:28
+6:58
Finish(13.11 mi)
2:42:3012:241.11 mi12:34
11:20
-3:08
Trend:
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoints & Pacing

Pace Line

Fastest Pace

7:30 /mi

Average Pace

12:24 /mi

Slowest Pace

22:52 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

3:45

2% of race

Time at Steady Pace

2:07:55

79% of race

Time at Slower Pace

30:50

19% of race

Average Pace: 12:24 /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
Featured Segment

Garmin Challenge

Top 83%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

12:53

Segment Time

14:19/mi

Pace

0.90 mi

Distance

Overall

5466

Men

3147

Division

322

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM20-29Seg. OverallSeg. MalesSeg. M20-29
2M2.00 mi6036344534831362036227
4M2.00 mi5777+2593359+86342+654523222337
6M2.00 mi5501+2763261+98339+349933044329
8M2.00 mi5247+2543159+102335+445122850306
9.6M1.60 mi5431-1843226-67338-357893288342
10M0.40 mi5386+453203+23333+549152910298
10.5M0.50 mi5459-733228-25337-463233505350
12M1.50 mi5049+4103038+190326+1131362036227
Finish(13.11 mi)1.11 mi4948+1012987+51319+743782644293

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 48%
~flat
+5ft-3ft

Overall

3136

Males

2036

M20-24

228

2M→4M

2.0 - 4.0 mi

Top 83%
×4story building
+67ft-69ft

Overall

5452

Males

3222

M20-24

339

4M→6M

4.0 - 6.0 mi

Top 76%
×9story building
+123ft-9ft

Overall

4993

Males

3044

M20-24

332

6M→8M

6.0 - 8.0 mi

Top 69%
×12story building
+166ft-53ft

Overall

4512

Males

2850

M20-24

308

8M→9.6M

8.0 - 9.6 mi

Top 88%
×13story building
+68ft-193ft

Overall

5789

Males

3288

M20-24

344

9.6M→10M

9.6 - 10.0 mi

Top 75%
×2story building
+0ft-24ft

Overall

4915

Males

2910

M20-24

299

10M→10.5M

10.0 - 10.5 mi

Top 96%
×6story building
+1ft-73ft

Overall

6323

Males

3505

M20-24

351

10.5M→12M

10.5 - 12.0 mi

Top 48%
×21story building
+280ft-26ft

Overall

3136

Males

2036

M20-24

228

12M→Finish

12.0 - 13.1 mi

Top 67%
×7story building
+14ft-89ft

Overall

4378

Males

2644

M20-24

293

Passing Analysis

Category:
Passed
1490*
Passed By
402
Net Change
+1088
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#6036
2M → 4M289*30+259#6036#5777
4M → 6M287*11+276#5777#5501
6M → 8M278*24+254#5501#5247
8M → 9.6M22206-184#5247#5431
9.6M → 10M6924+45#5431#5386
10M → 10.5M376-73#5386#5459
10.5M → 12M435*25+410#5459#5049
12M → Finish107*6+101#5049#4948
TOTALS1490*402+1088

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

Passing Charts

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

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