Beirong Lu

Santa clara, CA

Bib: 13845 F 50

0:00
0:00
/ mi
Masters
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Overall
#0 / 7100
Gender (Female)
#0 / 3107
Top 42%
Masters (Masters Women)
#0 / 776
Top 30%
Division (F50-54)
#0 / 149
Top 32%
Race Day Weather
56°/46°F
light rain

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
10 ft elev
1.81M
9:45/mi
17:39
→ flat
12 ft elev
5.34M
10:07/mi
53:20
8074
19 ft elev
6.15M
10:32/mi
1:01:52
1262.8%
149 ft elev
10.54M
10:58/mi
1:50:00
2303610.6%
20 ft elev
11.05M
15:41/mi
1:58:00
1726.4%
213 ft elev
Finish· 13.11 mi
10:55/mi
2:20:29
971140.2%
205 ft elev
Course Elevation
10277 ft
×22story building
774 ft climb · 557 ft descent

The Course

Half Splits

1st Half· via 6.15M
1:01:5210:04 /mi⚡ faster
2nd Half
1:18:3711:18 /mi+27.1%
Positive split — 27.1% 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
1.81M
17:399:451.81 mi17:39
9:45
-
5.34M
53:209:593.53 mi35:41
10:07
+0:22
6.15M
1:01:5210:040.81 mi8:32
10:32
+0:25
10.54M
1:50:0010:264.39 mi48:08
10:58
+0:26
11.05M
1:58:0010:410.51 mi8:00
15:41
+4:43
Finish(13.11 mi)
2:20:2910:432.06 mi22:29
10:55
-4:46
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

9:45 /mi

Average Pace

10:43 /mi

Slowest Pace

15:41 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

17:39

13% of race

Time at Steady Pace

1:54:50

82% of race

Time at Slower Pace

8:00

6% of race

Average Pace: 10:43 /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

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
1.81M1.81 mi34181099393418109939
5.34M3.53 mi3507-891147-4848-93616119348
6.15M0.81 mi3490+171133+1445+33456112437
10.54M4.39 mi3797-3071295-16248-34213150554
11.05M0.51 mi3824-271305-10484383163760
Finish(13.11 mi)2.06 mi3805+191308-3483738135652

Segment Performance Analysis

Start → 1.81M

0.0 - 1.8 mi

Top 48%
~flat
+4ft-3ft

Overall

3418

Females

1099

F50-54

41

1.81M→5.34M

1.8 - 5.3 mi

Top 51%
×4story building
+80ft-74ft

Overall

3616

Females

1193

F50-54

49

5.34M→6.15M

5.3 - 6.2 mi

Top 49%
×10story building
+126ft-4ft

Overall

3456

Females

1124

F50-54

38

6.15M→10.54M

6.2 - 10.5 mi

Top 59%
×21story building
+230ft-361ft

Overall

4213

Females

1505

F50-54

55

10.54M→11.05M

10.5 - 11.1 mi

Top 62%
×14story building
+172ft-0ft

Overall

4383

Females

1637

F50-54

60

11.05M→Finish

11.1 - 13.1 mi

Top 53%
×7story building
+97ft-114ft

Overall

3738

Females

1356

F50-54

52

Passing Analysis

Category:
Net Change
0
0 passed by0* passed
SegmentMovementRank
Start → 1.81M-#3418
1.81M5.34M
294205*-89
#3418 #3507
5.34M6.15M
5471+17
#3507 #3490
6.15M10.54M
37871*-307
#3490 #3797
10.54M11.05M
6336-27
#3797 #3824
11.05MFinish
6180*+19
#3824 #3805
TOTALS
850463*-387
#3418 #3805

* 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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