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SF MARATHON 1ST HALF 2026

Karthik Amirtharajan

San Jose, CA

Bib: 17471 M 50

0:00
0:00
/ mi
Masters
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Overall
#0 / 6575
Gender (Male)
#0 / 3619
Masters (Masters Men)
#0 / 1030
Division (M50-54)
#0 / 196
Race Day Weather
59°/49°F
scattered clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
10:49/mi
21:38
→ flat
4M
12:02/mi
45:41
↑ 67↓ 69
6M
12:21/mi
1:10:23
↑ 123
8M
13:38/mi
1:37:39
↑ 166↓ 53
9.6M
10:04/mi
1:53:46
↑ 68↓ 193
10M
26:02/mi
2:04:10
↓ 24
10.5M
4:58/mi
2:06:39
↓ 73
12M
19:16/mi
2:35:33
↑ 280
Finish· 13.11 mi
11:45/mi
2:48:35
↑ 14↓ 89
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6M
1:10:2311:44 /mi⚡ faster
2nd Half
1:38:1213:49 /mi+39.5%
Positive split — 39.5% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
2M
21:3810:492.00 mi21:38
10:49
-
4M
45:4111:252.00 mi24:03
12:02
+1:13
6M
1:10:2311:442.00 mi24:42
12:21
+0:19
8M
1:37:3912:122.00 mi27:16
13:38
+1:17
9.6M
1:53:4611:511.60 mi16:07
10:04
-3:34
10M
2:04:1012:250.40 mi10:24
26:02
+15:58
10.5M
2:06:3912:040.50 mi2:29
4:58
-21:04
12M
2:35:3312:581.50 mi28:54
19:16
+14:18
Finish(13.11 mi)
2:48:3512:521.11 mi13:02
11:45
-7:31
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

4:58 /mi

Average Pace

12:52 /mi

Slowest Pace

26:02 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:29

1% of race

Time at Steady Pace

2:06:48

75% of race

Time at Slower Pace

39:18

23% of race

Average Pace: 12:52 /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

5469

Men

3149

Division

159

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
2M2.00 mi4419278614359583347176
4M2.00 mi5057-6383059-273156-1354493219167
6M2.00 mi5194-1373130-71160-454083211159
8M2.00 mi5434-2403242-112165-558053370176
9.6M1.60 mi5260+1743154+88156+940832457119
10M0.40 mi5349-893188-34159-358563302176
10.5M0.50 mi5308+413173+15156+33115206593
12M1.50 mi5527-2193236-63160-459583347176
Finish(13.11 mi)1.11 mi5442+853192+44157+347372795142

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 91%
~flat
+5ft-3ft

Overall

5958

Males

3347

M50-54

176

2M→4M

2.0 - 4.0 mi

Top 83%
×4story building
+67ft-69ft

Overall

5449

Males

3219

M50-54

167

4M→6M

4.0 - 6.0 mi

Top 82%
×9story building
+123ft-9ft

Overall

5408

Males

3211

M50-54

159

6M→8M

6.0 - 8.0 mi

Top 88%
×12story building
+166ft-53ft

Overall

5805

Males

3370

M50-54

176

8M→9.6M

8.0 - 9.6 mi

Top 62%
×13story building
+68ft-193ft

Overall

4083

Males

2457

M50-54

119

9.6M→10M

9.6 - 10.0 mi

Top 89%
×2story building
+0ft-24ft

Overall

5856

Males

3302

M50-54

176

10M→10.5M

10.0 - 10.5 mi

Top 47%
×6story building
+1ft-73ft

Overall

3115

Males

2065

M50-54

93

10.5M→12M

10.5 - 12.0 mi

Top 91%
×21story building
+280ft-26ft

Overall

5958

Males

3347

M50-54

176

12M→Finish

12.0 - 13.1 mi

Top 72%
×7story building
+14ft-89ft

Overall

4737

Males

2795

M50-54

142

Passing Analysis

Category:
▼Net Change
0
0 passed by0* passed
SegmentMovementRank
Start → 2M-#4419
2M → 4M
68042-638
#4419 → #5057
4M → 6M
21881*-137
#5057 → #5194
6M → 8M
27434*-240
#5194 → #5434
8M → 9.6M
40214+174
#5434 → #5260
9.6M → 10M
10516-89
#5260 → #5349
10M → 10.5M
041+41
#5349 → #5308
10.5M → 12M
23617*-219
#5308 → #5527
12M → Finish
22107*+85
#5527 → #5442
TOTALS
1575552*-1023
#4419 → #5442

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

Passing Visualized

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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