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SF MARATHON 1ST HALF 2026

Alex Kirby

Bib: 16154•F•Age: 24

SF, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 23%
Gender (Female)
#0 / 2930
Top 12%
F20-29
#0 / 353
Top 14%
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
9:16/mi
18:32
→ flat
4M
9:18/mi
37:07
↑ 67↓ 69
6M
9:01/mi
55:09
↑ 1231.1%
8M
9:49/mi
1:14:48
↑ 166↓ 531.1%
9.6M
7:07/mi
1:26:12
↑ 68↓ 1931.5%
10M
16:46/mi
1:32:54
↓ 241.1%
10.5M
4:28/mi
1:35:08
↓ 732.7%
12M
12:23/mi
1:53:42
↑ 2803.2%
Finish· 13.11 mi
9:30/mi
2:04:14
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time55:09
Pace9:12 /mi
2nd Half
Distance7.11 mi
Time1:09:05
Pace9:43 /mi
📊Positive Split: 25.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:01:2218:329:1618:32
9:16
-
4M
4.00 mi07:19:5737:079:1718:35
9:18
+0:02
6M
6.00 mi07:37:5955:099:1218:02
9:01
-0:17
8M
8.00 mi07:57:381:14:489:2119:39
9:49
+0:48
9.6M
9.60 mi08:09:021:26:128:5911:24
7:07
-2:42
10M
10.00 mi08:15:441:32:549:176:42
16:46
+9:39
10.5M
10.50 mi08:17:581:35:089:042:14
4:28
-12:18
12M
12.00 mi08:36:321:53:429:2918:34
12:23
+7:55
Finish
13.11 mi08:47:042:04:149:2910:32
9:30
-2:53

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

4:28 /mi

Average Pace

9:29 /mi

Slowest Pace

16:46 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

13:38

11% of race

Time at Steady Pace

1:25:20

69% of race

Time at Slower Pace

25:16

20% of race

Average Pace: 9:29 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi3.3mi6.6mi9.8mi13.1mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
2M
2.00 mi07:01:2218:329:1618:32
9:16
#1885
4M
4.00 mi07:19:5737:079:1718:35
9:18
#1864
6M
6.00 mi07:37:5955:099:1218:02
9:01
#1700
8M
8.00 mi07:57:381:14:489:2119:39
9:49
#1786
9.6M
9.60 mi08:09:021:26:128:5911:24
7:07
#1537
10M
10.00 mi08:15:441:32:549:176:42
16:46
#1534
10.5M
10.50 mi08:17:581:35:089:042:14
4:28
#1543
12M
12.00 mi08:36:321:53:429:2918:34
12:23
#1500
Finish
13.11 mi08:47:042:04:149:2910:32
9:30
#1511
Faster pace
Steady pace
Slower pace
Featured Segment

Garmin Challenge

Top 25%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

8:56

Segment Time

9:56/mi

Pace

0.90 mi

Distance

Overall

1628

Women

405

Division

61

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF20-29Seg. OverallSeg. FemalesSeg. F20-29
2M2.00 mi2.00 mi1885482641484(Top 23%)394(Top 13%)66(Top 19%)
4M4.00 mi2.00 mi1864+21466+1661+31834(Top 28%)460(Top 16%)61(Top 17%)
6M6.00 mi2.00 mi1700+164403+6357+41438(Top 22%)322(Top 11%)48(Top 14%)
8M8.00 mi2.00 mi1786-86420-1756+12181(Top 33%)565(Top 19%)76(Top 22%)
9.6M9.60 mi1.60 mi1537+249346+7445+11756(Top 11%)204(Top 7%)38(Top 11%)
10M10.00 mi0.40 mi1534+3343+346-11674(Top 25%)437(Top 15%)64(Top 18%)
10.5M10.50 mi0.50 mi1543-9349-6461725(Top 26%)423(Top 14%)57(Top 16%)
12M12.00 mi1.50 mi1500+4334949-31484(Top 23%)394(Top 13%)66(Top 19%)
Finish13.11 mi1.11 mi1511-11347+248+12246(Top 34%)674(Top 23%)90(Top 25%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 23%
~flat
+5ft-3ft

Overall

1484

Females

394

F20-24

66

2M→4M

2.0 - 4.0 mi

Top 28%
×4story building
+67ft-69ft

Overall

1834

Females

460

F20-24

61

4M→6M

4.0 - 6.0 mi

Top 22%
×9story building
+123ft-9ft

Overall

1438

Females

322

F20-24

48

6M→8M

6.0 - 8.0 mi

Top 33%
×12story building
+166ft-53ft

Overall

2181

Females

565

F20-24

76

8M→9.6M

8.0 - 9.6 mi

Top 11%
×13story building
+68ft-193ft

Overall

756

Females

204

F20-24

38

9.6M→10M

9.6 - 10.0 mi

Top 25%
×2story building
+0ft-24ft

Overall

1674

Females

437

F20-24

64

10M→10.5M

10.0 - 10.5 mi

Top 26%
×6story building
+1ft-73ft

Overall

1725

Females

423

F20-24

57

10.5M→12M

10.5 - 12.0 mi

Top 23%
×21story building
+280ft-26ft

Overall

1484

Females

394

F20-24

66

12M→Finish

12.0 - 13.1 mi

Top 34%
×7story building
+14ft-89ft

Overall

2246

Females

674

F20-24

90

Passing Analysis

Category:
Athletes Passed
771*
Passed By
397
Net Change
+374
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#1885
2M → 4M10483+21#1885#1864
4M → 6M18117+164#1864#1700
6M → 8M81*167-86#1700#1786
8M → 9.6M26011+249#1786#1537
9.6M → 10M2623+3#1537#1534
10M → 10.5M514-9#1534#1543
10.5M → 12M8239+43#1543#1500
12M → Finish32*43-11#1500#1511
TOTALS771*397+374

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

📊

Passing Visuals

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

Race Place Events

Race Place Events