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SF MARATHON 1ST HALF 2026

Nathaniel Akimoto

San Francisco, CA

Bib: 13329 M 22

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 32%
Gender (Male)
#0 / 3619
Top 42%
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
9:25/mi
18:51
→ flat
12 ft elev
4M
9:26/mi
37:43
↑ 67↓ 69
10 ft elev
6M
9:18/mi
56:19
↑ 1231.1%
126 ft elev
8M
9:26/mi
1:15:11
↑ 166↓ 531.1%
246 ft elev
9.6M
9:26/mi
1:30:16
↑ 68↓ 1931.5%
126 ft elev
10M
17:49/mi
1:37:23
↓ 241.1%
90 ft elev
10.5M
4:48/mi
1:39:47
↓ 732.7%
18 ft elev
12M
14:01/mi
2:00:49
↑ 2803.2%
272 ft elev
Finish· 13.11 mi
9:16/mi
2:11:06
↑ 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
56:199:23 /mi⚡ faster
2nd Half
1:14:4710:31 /mi+32.8%
Positive split — 32.8% 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
18:519:252.00 mi18:51
9:25
-
4M
37:439:262.00 mi18:52
9:26
+0:01
6M
56:199:232.00 mi18:36
9:18
-0:08
8M
1:15:119:242.00 mi18:52
9:26
+0:08
9.6M
1:30:169:241.60 mi15:05
9:26
0:00
10M
1:37:239:440.40 mi7:07
17:49
+8:23
10.5M
1:39:479:300.50 mi2:24
4:48
-13:01
12M
2:00:4910:041.50 mi21:02
14:01
+9:13
Finish(13.11 mi)
2:11:0610:001.11 mi10:17
9:16
-4:45
Trend:
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoints & Pacing

Pace Line

Fastest Pace

4:48 /mi

Average Pace

10:00 /mi

Slowest Pace

17:49 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:24

2% of race

Time at Steady Pace

1:40:33

77% of race

Time at Slower Pace

28:09

21% of race

Average Pace: 10:00 /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 34%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

9:31

Segment Time

10:35/mi

Pace

0.90 mi

Distance

Overall

2259

Men

1596

Division

191

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM20-29Seg. OverallSeg. MalesSeg. M20-29
2M2.00 mi2147155319027481844213
4M2.00 mi2051+961497+56182+820301495181
6M2.00 mi1943+1081443+54176+618031347172
8M2.00 mi1849+941394+49171+517191310150
9.6M1.60 mi2053-2041499-105187-1632852038231
10M0.40 mi2056-31499184+322571581188
10.5M0.50 mi2062-61501-2185-125861776213
12M1.50 mi2165-1031547-46191-627481844213
Finish(13.11 mi)1.11 mi2123+421522+25189+219781421179

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 42%
~flat
+5ft-3ft

Overall

2748

Males

1844

M20-24

214

2M→4M

2.0 - 4.0 mi

Top 31%
×4story building
+67ft-69ft

Overall

2030

Males

1495

M20-24

182

4M→6M

4.0 - 6.0 mi

Top 27%
×9story building
+123ft-9ft

Overall

1803

Males

1347

M20-24

173

6M→8M

6.0 - 8.0 mi

Top 26%
×12story building
+166ft-53ft

Overall

1719

Males

1310

M20-24

151

8M→9.6M

8.0 - 9.6 mi

Top 50%
×13story building
+68ft-193ft

Overall

3285

Males

2038

M20-24

232

9.6M→10M

9.6 - 10.0 mi

Top 34%
×2story building
+0ft-24ft

Overall

2257

Males

1581

M20-24

189

10M→10.5M

10.0 - 10.5 mi

Top 39%
×6story building
+1ft-73ft

Overall

2586

Males

1776

M20-24

214

10.5M→12M

10.5 - 12.0 mi

Top 42%
×21story building
+280ft-26ft

Overall

2748

Males

1844

M20-24

214

12M→Finish

12.0 - 13.1 mi

Top 30%
×7story building
+14ft-89ft

Overall

1978

Males

1421

M20-24

179

Passing Analysis

Category:
Athletes Passed
581*
Passed By
557
Net Change
+24
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#2147
2M → 4M16670+96#2147#2051
4M → 6M13123+108#2051#1943
6M → 8M163*69+94#1943#1849
8M → 9.6M13217-204#1849#2053
9.6M → 10M2326-3#2053#2056
10M → 10.5M39-6#2056#2062
10.5M → 12M28131-103#2062#2165
12M → Finish54*12+42#2165#2123
TOTALS581*557+24

* 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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