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SF MARATHON 1ST HALF 2026

Aidan Shields

Danville, CA

Bib: 12155 M 22

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 34%
Gender (Male)
#0 / 3619
Top 44%
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
7:39/mi
15:18
→ flat
12 ft elev
4M
7:49/mi
30:56
↑ 67↓ 69
10 ft elev
6M
7:49/mi
46:34
↑ 1231.1%
126 ft elev
8M
10:45/mi
1:08:05
↑ 166↓ 531.1%
246 ft elev
9.6M
12:38/mi
1:28:18
↑ 68↓ 1931.5%
126 ft elev
10M
22:14/mi
1:37:11
↓ 241.1%
90 ft elev
10.5M
4:44/mi
1:39:33
↓ 732.7%
18 ft elev
12M
15:09/mi
2:02:17
↑ 2803.2%
272 ft elev
Finish· 13.11 mi
9:02/mi
2:12:18
↑ 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
46:347:46 /mi⚡ faster
2nd Half
1:25:4412:04 /mi+84.1%
Positive split — 84.1% 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
15:187:392.00 mi15:18
7:39
-
4M
30:567:442.00 mi15:38
7:49
+0:10
6M
46:347:462.00 mi15:38
7:49
0:00
8M
1:08:058:312.00 mi21:31
10:45
+2:56
9.6M
1:28:189:121.60 mi20:13
12:38
+1:53
10M
1:37:119:430.40 mi8:53
22:14
+9:36
10.5M
1:39:339:290.50 mi2:22
4:44
-17:30
12M
2:02:1710:111.50 mi22:44
15:09
+10:25
Finish(13.11 mi)
2:12:1810:061.11 mi10:01
9:02
-6:07
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

4:44 /mi

Average Pace

10:06 /mi

Slowest Pace

22:14 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:22

2% of race

Time at Steady Pace

1:18:06

59% of race

Time at Slower Pace

51:50

39% of race

Average Pace: 10:05 /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 63%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

11:15

Segment Time

12:30/mi

Pace

0.90 mi

Distance

Overall

4160

Men

2580

Division

268

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM20-29Seg. OverallSeg. MalesSeg. M20-29
2M2.00 mi3202753436532298256
4M2.00 mi329-9283-836-236731137
6M2.00 mi344-15290-73637131641
8M2.00 mi798-454658-36874-3832482210247
9.6M1.60 mi1788-9901340-682168-9461613452350
10M0.40 mi2033-2451481-141182-1446272777290
10.5M0.50 mi2038-51485-4183-124291692203
12M1.50 mi2310-2721635-150199-1636532298256
Finish(13.11 mi)1.11 mi2218+921578+57194+516811236160

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 56%
~flat
+5ft-3ft

Overall

3653

Males

2298

M20-24

257

2M→4M

2.0 - 4.0 mi

Top 6%
×4story building
+67ft-69ft

Overall

367

Males

311

M20-24

38

4M→6M

4.0 - 6.0 mi

Top 6%
×9story building
+123ft-9ft

Overall

371

Males

316

M20-24

42

6M→8M

6.0 - 8.0 mi

Top 49%
×12story building
+166ft-53ft

Overall

3248

Males

2210

M20-24

248

8M→9.6M

8.0 - 9.6 mi

Top 94%
×13story building
+68ft-193ft

Overall

6161

Males

3452

M20-24

352

9.6M→10M

9.6 - 10.0 mi

Top 70%
×2story building
+0ft-24ft

Overall

4627

Males

2777

M20-24

291

10M→10.5M

10.0 - 10.5 mi

Top 37%
×6story building
+1ft-73ft

Overall

2429

Males

1692

M20-24

204

10.5M→12M

10.5 - 12.0 mi

Top 56%
×21story building
+280ft-26ft

Overall

3653

Males

2298

M20-24

257

12M→Finish

12.0 - 13.1 mi

Top 26%
×7story building
+14ft-89ft

Overall

1681

Males

1236

M20-24

160

Passing Analysis

Category:
Passed
142*
Passed By
2040
Net Change
-1898
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#320
2M → 4M1423-9#320#329
4M → 6M1833-15#329#344
6M → 8M0454-454#344#798
8M → 9.6M1991-990#798#1788
9.6M → 10M3248-245#1788#2033
10M → 10.5M49-5#2033#2038
10.5M → 12M8280-272#2038#2310
12M → Finish94*2+92#2310#2218
TOTALS142*2040-1898

* 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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