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SF MARATHON 1ST HALF 2026

Di Song

Arcadia, CA

Bib: 10663 F 35

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 34%
Gender (Female)
#0 / 2930
Top 22%
Division (F35-39)
#0 / 388
Top 23%
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
8:48/mi
17:37
→ flat
12 ft elev
4M
9:26/mi
36:28
↑ 67↓ 69
10 ft elev
6M
9:37/mi
55:43
↑ 1231.1%
126 ft elev
8M
10:54/mi
1:17:32
↑ 166↓ 531.1%
246 ft elev
9.6M
7:22/mi
1:29:19
↑ 68↓ 1931.5%
126 ft elev
10M
17:24/mi
1:36:16
↓ 241.1%
90 ft elev
10.5M
4:52/mi
1:38:42
↓ 732.7%
18 ft elev
12M
14:39/mi
2:00:41
↑ 2803.2%
272 ft elev
Finish· 13.11 mi
10:33/mi
2:12:23
↑ 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
55:439:17 /mi⚡ faster
2nd Half
1:16:4010:47 /mi+37.6%
Positive split — 37.6% slower in the second half
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Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi06:55:4017:378:4817:37
8:48
-
4M
4.00 mi07:14:3136:289:0718:51
9:26
+0:38
6M
6.00 mi07:33:4655:439:1719:15
9:37
+0:11
8M
8.00 mi07:55:351:17:329:4121:49
10:54
+1:17
9.6M
9.60 mi08:07:221:29:199:1811:47
7:22
-3:32
10M
10.00 mi08:14:191:36:169:386:57
17:24
+10:02
10.5M
10.50 mi08:16:451:38:429:242:26
4:52
-12:32
12M
12.00 mi08:38:442:00:4110:0321:59
14:39
+9:47
Finish
13.11 mi08:50:262:12:2310:0611:42
10:33
-4:06

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

4:52 /mi

Average Pace

10:06 /mi

Slowest Pace

17:24 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

14:13

11% of race

Time at Steady Pace

1:29:14

67% of race

Time at Slower Pace

28:56

22% of race

Average Pace: 10:06 /mi

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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.

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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 mi06:55:4017:378:4817:37
8:48
#1275
4M
4.00 mi07:14:3136:289:0718:51
9:26
#1612
6M
6.00 mi07:33:4655:439:1719:15
9:37
#1827
8M
8.00 mi07:55:351:17:329:4121:49
10:54
#2222
9.6M
9.60 mi08:07:221:29:199:1811:47
7:22
#1914
10M
10.00 mi08:14:191:36:169:386:57
17:24
#1907
10.5M
10.50 mi08:16:451:38:429:242:26
4:52
#1924
12M
12.00 mi08:38:442:00:4110:0321:59
14:39
#2154
Finish
13.11 mi08:50:262:12:2310:0611:42
10:33
#2232
Faster pace
Steady pace
Slower pace
Featured Segment

Garmin Challenge

Top 32%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

9:23

Segment Time

10:26/mi

Pace

0.90 mi

Distance

Overall

2134

Women

615

Division

81

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF35-39Seg. OverallSeg. FemalesSeg. F35-39
2M2.00 mi2.00 mi12752763132651149148
4M4.00 mi2.00 mi1612-337379-10353-22201452277
6M6.00 mi2.00 mi1827-215453-7461-8218860985
8M8.00 mi2.00 mi2222-395591-13882-2134391133154
9.6M9.60 mi1.60 mi1914+308492+9968+1494628635
10M10.00 mi0.40 mi1907+749268203958876
10.5M10.50 mi0.50 mi1924-17502-1069-12765886123
12M12.00 mi1.50 mi2154-230611-10980-1132651149148
Finish13.11 mi1.11 mi2232-78640-2988-835231271166

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 50%
~flat
+5ft-3ft

Overall

3265

Females

1149

F35-39

148

2M→4M

2.0 - 4.0 mi

Top 31%
×4story building
+67ft-69ft

Overall

2014

Females

522

F35-39

77

4M→6M

4.0 - 6.0 mi

Top 33%
×9story building
+123ft-9ft

Overall

2188

Females

609

F35-39

85

6M→8M

6.0 - 8.0 mi

Top 52%
×12story building
+166ft-53ft

Overall

3439

Females

1133

F35-39

154

8M→9.6M

8.0 - 9.6 mi

Top 14%
×13story building
+68ft-193ft

Overall

946

Females

286

F35-39

35

9.6M→10M

9.6 - 10.0 mi

Top 31%
×2story building
+0ft-24ft

Overall

2039

Females

588

F35-39

76

10M→10.5M

10.0 - 10.5 mi

Top 42%
×6story building
+1ft-73ft

Overall

2765

Females

886

F35-39

123

10.5M→12M

10.5 - 12.0 mi

Top 50%
×21story building
+280ft-26ft

Overall

3265

Females

1149

F35-39

148

12M→Finish

12.0 - 13.1 mi

Top 54%
×7story building
+14ft-89ft

Overall

3523

Females

1271

F35-39

166

Passing Analysis

Category:
Athletes Passed
430*
Passed By
1387
Net Change
-957
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#1275
2M → 4M11348-337#1275#1612
4M → 6M18233-215#1612#1827
6M → 8M12*407-395#1827#2222
8M → 9.6M3168+308#2222#1914
9.6M → 10M3225+7#1914#1907
10M → 10.5M219-17#1907#1924
10.5M → 12M15245-230#1924#2154
12M → Finish24*102-78#2154#2232
TOTALS430*1387-957

* 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

Race Place Events

Race Place Events