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SF MARATHON 1ST HALF 2026

Justin Ivan Principe

Carson, CA

Bib: 14810 M 29

0:00
0:00
/ mi
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Overall
#0 / 6575
Gender (Male)
#0 / 3619
Division (M25-29)
#0 / 796
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
11:49/mi
23:39
→ flat
4M
11:46/mi
47:10
↑ 67↓ 69
6M
12:12/mi
1:11:34
↑ 123
8M
13:50/mi
1:39:15
↑ 166↓ 53
9.6M
9:27/mi
1:54:22
↑ 68↓ 193
10M
25:12/mi
2:04:26
↓ 24
10.5M
5:40/mi
2:07:16
↓ 73
12M
17:00/mi
2:32:46
↑ 280
Finish· 13.11 mi
12:28/mi
2:46:36
↑ 14↓ 89
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6M
1:11:3411:56 /mi⚡ faster
2nd Half
1:35:0213:22 /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
23:3911:492.00 mi23:39
11:49
-
4M
47:1011:482.00 mi23:31
11:46
-0:03
6M
1:11:3411:562.00 mi24:24
12:12
+0:26
8M
1:39:1512:242.00 mi27:41
13:50
+1:38
9.6M
1:54:2211:551.60 mi15:07
9:27
-4:23
10M
2:04:2612:270.40 mi10:04
25:12
+15:45
10.5M
2:07:1612:070.50 mi2:50
5:40
-19:32
12M
2:32:4612:441.50 mi25:30
17:00
+11:20
Finish(13.11 mi)
2:46:3612:431.11 mi13:50
12:28
-4:32
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

5:40 /mi

Average Pace

12:43 /mi

Slowest Pace

25:12 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

17:57

11% of race

Time at Steady Pace

1:53:05

68% of race

Time at Slower Pace

35:34

21% of race

Average Pace: 12:42 /mi

Loading chart...
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

12:54

Segment Time

14:20/mi

Pace

0.90 mi

Distance

Overall

5483

Men

3153

Division

706

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
2M2.00 mi5734333174248542866650
4M2.00 mi5472+2623229+102721+2152003115708
6M2.00 mi5385+873208+2172152663150717
8M2.00 mi5625-2403308-100749-2859053410766
9.6M1.60 mi5312+3133177+131721+2833132053489
10M0.40 mi5379-673200-23725-456683223716
10.5M0.50 mi5360+193192+8724+148062894657
12M1.50 mi5290+703143+49712+1248542866650
Finish(13.11 mi)1.11 mi5253+373117+26706+652463014679

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 74%
~flat
+5ft-3ft

Overall

4854

Males

2866

M25-29

651

2M→4M

2.0 - 4.0 mi

Top 79%
×4story building
+67ft-69ft

Overall

5200

Males

3115

M25-29

711

4M→6M

4.0 - 6.0 mi

Top 80%
×9story building
+123ft-9ft

Overall

5266

Males

3150

M25-29

719

6M→8M

6.0 - 8.0 mi

Top 90%
×12story building
+166ft-53ft

Overall

5905

Males

3410

M25-29

767

8M→9.6M

8.0 - 9.6 mi

Top 50%
×13story building
+68ft-193ft

Overall

3313

Males

2053

M25-29

490

9.6M→10M

9.6 - 10.0 mi

Top 86%
×2story building
+0ft-24ft

Overall

5668

Males

3223

M25-29

717

10M→10.5M

10.0 - 10.5 mi

Top 73%
×6story building
+1ft-73ft

Overall

4806

Males

2894

M25-29

658

10.5M→12M

10.5 - 12.0 mi

Top 74%
×21story building
+280ft-26ft

Overall

4854

Males

2866

M25-29

651

12M→Finish

12.0 - 13.1 mi

Top 80%
×7story building
+14ft-89ft

Overall

5246

Males

3014

M25-29

679

Passing Analysis

Category:
▲Net Change
+0
0 passed by0* passed
SegmentMovementRank
Start → 2M-#5734
2M → 4M
36298*+262
#5734 → #5472
4M → 6M
71158*+87
#5472 → #5385
6M → 8M
27838*-240
#5385 → #5625
8M → 9.6M
5318+313
#5625 → #5312
9.6M → 10M
8619-67
#5312 → #5379
10M → 10.5M
423+19
#5379 → #5360
10.5M → 12M
70140*+70
#5360 → #5290
12M → Finish
2764*+37
#5290 → #5253
TOTALS
5771058*+481
#5734 → #5253

* 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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