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BOSTON MARATHON 2023

Song Qing Yang Zhong

Bib: 21037•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 41%
Division (F50-54)
#0 / 1207
Top 34%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:45
Rank: #18294
Start → 5K
26:45 | 8:37/mi
10K· 6.21 mi
53:02
Rank: #18115 (+179)
5K → 10K
26:17 | 8:28/mi
15K· 9.32 mi
1:19:18
Rank: #17900 (+215)
10K → 15K
26:16 | 8:27/mi
20K· 12.43 mi
1:45:50
Rank: #17667 (+233)
15K → 20K
26:32 | 8:32/mi
Half· 13.11 mi
1:51:35
Rank: #17638 (+29)
20K → Half
5:45 | 8:26/mi
25K· 15.53 mi
2:12:32
Rank: #17522 (+116)
Half → 25K
20:57 | 8:38/mi
30K· 18.64 mi
2:40:05
Rank: #17282 (+240)
25K → 30K
27:33 | 8:52/mi
20M
2:52:15
Rank: #17217 (+65)
30K → 20M
12:10 | 8:57/mi
21M
3:01:35
Rank: #17080 (+137)
20M → 21M
9:20 | 9:20/mi
35K· 21.75 mi
3:07:56
Rank: #17004 (+76)
21M → 35K
6:21 | 8:29/mi
23M
3:18:58
Rank: #16877 (+127)
35K → 23M
11:02 | 8:49/mi
24M
3:27:34
Rank: #16817 (+60)
23M → 24M
8:36 | 8:36/mi
40K· 24.85 mi
3:35:09
Rank: #16750 (+67)
24M → 40K
7:35 | 8:52/mi
25.2M
3:38:22
Rank: #16695 (+55)
40K → 25.2M
3:13 | 9:20/mi
Finish· 26.22 mi
3:47:01
Rank: #16625 (+70)
25.2M → Finish
8:39 | 8:29/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:35
Pace8:31 /mi
2nd Half
Distance13.11 mi
Time1:55:26
Pace8:48 /mi
📊Positive Split: 3.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:3126:458:3726:45
8:37
-
10K
6.21 mi11:46:4853:028:3226:17
8:28
-0:09
15K
9.32 mi12:13:041:19:188:3026:16
8:27
-0:01
20K
12.43 mi12:39:361:45:508:3126:32
8:32
+0:05
Half
13.11 mi12:45:211:51:358:315:45
8:26
-0:06
25K
15.53 mi13:06:182:12:328:3220:57
8:38
+0:12
30K
18.64 mi13:33:512:40:058:3527:33
8:52
+0:14
20M
20.00 mi13:46:012:52:158:3712:10
8:57
+0:05
21M
21.00 mi13:55:213:01:358:399:20
9:20
+0:23
35K
21.75 mi14:01:423:07:568:386:21
8:29
-0:51
23M
23.00 mi14:12:443:18:588:3911:02
8:49
+0:20
24M
24.00 mi14:21:203:27:348:398:36
8:36
-0:13
40K
24.85 mi14:28:553:35:098:397:35
8:52
+0:16
25.2M
25.20 mi14:32:083:38:228:403:13
9:20
+0:28
Finish
26.22 mi14:40:473:47:018:408:39
8:29
-0:51

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

8:26 /mi

Average Pace

8:40 /mi

Slowest Pace

9:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:34:28

94% of race

Time at Steady Pace

12:33

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:39 /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...
0mi6.6mi13.1mi19.7mi26.2mi
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
5K
3.11 mi11:20:3126:458:3726:45
8:37
#18294
10K
6.21 mi11:46:4853:028:3226:17
8:28
#18115
15K
9.32 mi12:13:041:19:188:3026:16
8:27
#17900
20K
12.43 mi12:39:361:45:508:3126:32
8:32
#17667
Half
13.11 mi12:45:211:51:358:315:45
8:26
#17638
25K
15.53 mi13:06:182:12:328:3220:57
8:38
#17522
30K
18.64 mi13:33:512:40:058:3527:33
8:52
#17282
20M
20.00 mi13:46:012:52:158:3712:10
8:57
#17217
21M
21.00 mi13:55:213:01:358:399:20
9:20
#17080
35K
21.75 mi14:01:423:07:568:386:21
8:29
#17004
23M
23.00 mi14:12:443:18:588:3911:02
8:49
#16877
24M
24.00 mi14:21:203:27:348:398:36
8:36
#16817
40K
24.85 mi14:28:553:35:098:397:35
8:52
#16750
25.2M
25.20 mi14:32:083:38:228:403:13
9:20
#16695
Finish
26.22 mi14:40:473:47:018:408:39
8:29
#16625
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi182946735673517509(Top 66%)6219(Top 54%)6219(Top 515%)
10K6.21 mi3.10 mi18115+1796594+1416594+14118001(Top 68%)6473(Top 57%)6473(Top 536%)
15K9.32 mi3.11 mi17900+2156462+1326462+13217509(Top 66%)6219(Top 54%)6219(Top 515%)
20K12.43 mi3.11 mi17667+2336321+1416321+14117125(Top 64%)6004(Top 53%)6004(Top 497%)
Half13.11 mi0.68 mi17638+296304+176304+1717332(Top 65%)6078(Top 53%)6078(Top 504%)
25K15.53 mi2.42 mi17522+1166249+556249+5517049(Top 64%)6033(Top 53%)6033(Top 500%)
30K18.64 mi3.11 mi17282+2406126+1236126+12316478(Top 62%)5776(Top 51%)5776(Top 479%)
20M20.00 mi1.36 mi17217+656110+166110+1616308(Top 61%)5757(Top 50%)5757(Top 477%)
21M21.00 mi1.00 mi17080+1376038+726038+7215207(Top 57%)5179(Top 45%)5179(Top 429%)
35K21.75 mi0.75 mi17004+765998+405998+4015298(Top 57%)5302(Top 46%)5302(Top 439%)
23M23.00 mi1.25 mi16877+1275950+485950+4815087(Top 57%)5233(Top 46%)5233(Top 434%)
24M24.00 mi1.00 mi16817+605934+165934+1615090(Top 57%)5285(Top 46%)5285(Top 438%)
40K24.85 mi0.85 mi16750+675909+255909+2515480(Top 58%)5574(Top 49%)5574(Top 462%)
25.2M25.20 mi0.35 mi16695+555887+225887+2214415(Top 54%)4985(Top 44%)4985(Top 413%)
Finish26.22 mi1.02 mi16625+705853+345853+3415383(Top 58%)5476(Top 48%)5476(Top 454%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21stories
+97ft-345ft

Overall

17509

Females

6219

F50-54

6219

5K→10K

3.1 - 6.2 mi

Top 68%
×5stories
+79ft-138ft

Overall

18001

Females

6473

F50-54

6473

10K→15K

6.2 - 9.3 mi

Top 66%
×3stories
+67ft-78ft

Overall

17509

Females

6219

F50-54

6219

15K→20K

9.3 - 12.4 mi

Top 64%
×5stories
+106ft-86ft

Overall

17125

Females

6004

F50-54

6004

20K→Half

12.4 - 13.1 mi

Top 65%
×2stories
+19ft-37ft

Overall

17332

Females

6078

F50-54

6078

Half→25K

13.1 - 15.5 mi

Top 64%
×4stories
+66ft-88ft

Overall

17049

Females

6033

F50-54

6033

25K→30K

15.5 - 18.6 mi

Top 62%
×9stories
+181ft-148ft

Overall

16478

Females

5776

F50-54

5776

30K→20M

18.6 - 20.0 mi

Top 61%
×5stories
+64ft-50ft

Overall

16308

Females

5757

F50-54

5757

20M→21M

20.0 - 21.0 mi

Top 57%
×8stories
+106ft-24ft

Overall

15207

Females

5179

F50-54

5179

21M→35K

21.0 - 21.8 mi

Top 57%
×7stories
+17ft-86ft

Overall

15298

Females

5302

F50-54

5302

35K→23M

21.8 - 23.0 mi

Top 57%
×5stories
+23ft-63ft

Overall

15087

Females

5233

F50-54

5233

23M→24M

23.0 - 24.0 mi

Top 57%
×6stories
+12ft-82ft

Overall

15090

Females

5285

F50-54

5285

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

15480

Females

5574

F50-54

5574

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

14415

Females

4985

F50-54

4985

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2stories
+22ft-21ft

Overall

15383

Females

5476

F50-54

5476

Passing Analysis

Category:
Athletes Passed
2396
Passed By
727
Net Change
+1669
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18294
5K → 10K412233+179#18294#18115
10K → 15K31297+215#18115#17900
15K → 20K30471+233#17900#17667
20K → Half4920+29#17667#17638
Half → 25K16953+116#17638#17522
25K → 30K29353+240#17522#17282
30K → 20M11045+65#17282#17217
20M → 21M16730+137#17217#17080
21M → 35K9317+76#17080#17004
35K → 23M14720+127#17004#16877
23M → 24M9636+60#16877#16817
24M → 40K9023+67#16817#16750
40K → 25.2M572+55#16750#16695
25.2M → Finish9727+70#16695#16625
TOTALS2396727+1669
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing