Boston Marathon logo
BOSTON MARATHON 2023

Nadine Zyman

Bib: 13284•F

FL

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 30%
Gender (Female)
#0 / 11423
Top 11%
Division (F18-39)
#0 / 4884
Top 20%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:26/mi
23:07
↑ 97↓ 3451.5%
10K· 6.21 mi
7:19/mi
45:50
↑ 79↓ 1380.4%
15K· 9.32 mi
7:19/mi
1:08:33
↑ 67↓ 78
20K· 12.43 mi
7:23/mi
1:31:28
↑ 106↓ 860.1%
Half· 13.11 mi
7:15/mi
1:36:25
↑ 19↓ 370.5%
25K· 15.53 mi
7:25/mi
1:54:24
↑ 66↓ 880.2%
30K· 18.64 mi
7:41/mi
2:18:15
↑ 181↓ 1480.2%
20M
7:41/mi
2:28:41
↑ 64↓ 500.2%
21M
7:54/mi
2:36:35
↑ 106↓ 241.6%
35K· 21.75 mi
7:09/mi
2:41:56
↑ 17↓ 861.7%
23M
7:38/mi
2:51:30
↑ 23↓ 630.6%
24M
7:23/mi
2:58:53
↓ 821.3%
40K· 24.85 mi
7:30/mi
3:05:18
↓ 200.3%
25.2M
8:04/mi
3:08:05
↑ 13↓ 160.2%
Finish· 26.22 mi
7:24/mi
3:15:37
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:25
Pace7:21 /mi
2nd Half
Distance13.11 mi
Time1:39:12
Pace7:34 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:0323:077:2623:07
7:26
-
10K
6.21 mi11:12:4645:507:2322:43
7:19
-0:07
15K
9.32 mi11:35:291:08:337:2122:43
7:19
0:00
20K
12.43 mi11:58:241:31:287:2222:55
7:23
+0:04
Half
13.11 mi12:03:211:36:257:214:57
7:15
-0:08
25K
15.53 mi12:21:201:54:247:2217:59
7:25
+0:10
30K
18.64 mi12:45:112:18:157:2523:51
7:41
+0:16
20M
20.00 mi12:55:372:28:417:2610:26
7:41
0:00
21M
21.00 mi13:03:312:36:357:277:54
7:54
+0:13
35K
21.75 mi13:08:522:41:567:275:21
7:09
-0:45
23M
23.00 mi13:18:262:51:307:279:34
7:38
+0:29
24M
24.00 mi13:25:492:58:537:277:23
7:23
-0:15
40K
24.85 mi13:32:143:05:187:276:25
7:30
+0:07
25.2M
25.20 mi13:35:013:08:057:282:47
8:04
+0:34
Finish
26.22 mi13:42:333:15:377:287:32
7:24
-0:40

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

7:09 /mi

Average Pace

7:28 /mi

Slowest Pace

8:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:04:56

95% of race

Time at Steady Pace

10:41

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:28 /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 mi10:50:0323:077:2623:07
7:26
#9158
10K
6.21 mi11:12:4645:507:2322:43
7:19
#9009
15K
9.32 mi11:35:291:08:337:2122:43
7:19
#8875
20K
12.43 mi11:58:241:31:287:2222:55
7:23
#8706
Half
13.11 mi12:03:211:36:257:214:57
7:15
#8669
25K
15.53 mi12:21:201:54:247:2217:59
7:25
#8553
30K
18.64 mi12:45:112:18:157:2523:51
7:41
#8496
20M
20.00 mi12:55:372:28:417:2610:26
7:41
#8432
21M
21.00 mi13:03:312:36:357:277:54
7:54
#8312
35K
21.75 mi13:08:522:41:567:275:21
7:09
#8215
23M
23.00 mi13:18:262:51:307:279:34
7:38
#8128
24M
24.00 mi13:25:492:58:537:277:23
7:23
#8045
40K
24.85 mi13:32:143:05:187:276:25
7:30
#7961
25.2M
25.20 mi13:35:013:08:057:282:47
8:04
#7928
Finish
26.22 mi13:42:333:15:377:287:32
7:24
#7905
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi9158145214528679(Top 33%)1310(Top 11%)1310(Top 27%)
10K6.21 mi3.10 mi9009+1491417+351417+358937(Top 34%)1384(Top 12%)1384(Top 28%)
15K9.32 mi3.11 mi8875+1341374+431374+438679(Top 33%)1310(Top 11%)1310(Top 27%)
20K12.43 mi3.11 mi8706+1691318+561318+568344(Top 31%)1239(Top 11%)1239(Top 25%)
Half13.11 mi0.68 mi8669+371300+181300+188311(Top 31%)1216(Top 11%)1216(Top 25%)
25K15.53 mi2.42 mi8553+1161282+181282+188177(Top 31%)1246(Top 11%)1246(Top 26%)
30K18.64 mi3.11 mi8496+571300-181300-188488(Top 32%)1499(Top 13%)1499(Top 31%)
20M20.00 mi1.36 mi8432+641294+61294+68038(Top 30%)1413(Top 12%)1413(Top 29%)
21M21.00 mi1.00 mi8312+1201271+231271+236760(Top 25%)1041(Top 9%)1041(Top 21%)
35K21.75 mi0.75 mi8215+971246+251246+256276(Top 24%)857(Top 8%)857(Top 18%)
23M23.00 mi1.25 mi8128+871234+121234+127385(Top 28%)1327(Top 12%)1327(Top 27%)
24M24.00 mi1.00 mi8045+831220+141220+146967(Top 26%)1262(Top 11%)1262(Top 26%)
40K24.85 mi0.85 mi7961+841207+131207+136788(Top 25%)1273(Top 11%)1273(Top 26%)
25.2M25.20 mi0.35 mi7928+331206+11206+16968(Top 26%)1391(Top 12%)1391(Top 28%)
Finish26.22 mi1.02 mi7905+231221-151221-157757(Top 29%)1717(Top 15%)1717(Top 35%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21story building
+97ft-345ft

Overall

8679

Females

1310

F18-39

1310

5K→10K

3.1 - 6.2 mi

Top 34%
×5story building
+79ft-138ft

Overall

8937

Females

1384

F18-39

1384

10K→15K

6.2 - 9.3 mi

Top 33%
×3story building
+67ft-78ft

Overall

8679

Females

1310

F18-39

1310

15K→20K

9.3 - 12.4 mi

Top 31%
×5story building
+106ft-86ft

Overall

8344

Females

1239

F18-39

1239

20K→Half

12.4 - 13.1 mi

Top 31%
×2story building
+19ft-37ft

Overall

8311

Females

1216

F18-39

1216

Half→25K

13.1 - 15.5 mi

Top 31%
×4story building
+66ft-88ft

Overall

8177

Females

1246

F18-39

1246

25K→30K

15.5 - 18.6 mi

Top 32%
×9story building
+181ft-148ft

Overall

8488

Females

1499

F18-39

1499

30K→20M

18.6 - 20.0 mi

Top 30%
×5story building
+64ft-50ft

Overall

8038

Females

1413

F18-39

1413

20M→21M

20.0 - 21.0 mi

Top 25%
×8story building
+106ft-24ft

Overall

6760

Females

1041

F18-39

1041

21M→35K

21.0 - 21.8 mi

Top 24%
×7story building
+17ft-86ft

Overall

6276

Females

857

F18-39

857

35K→23M

21.8 - 23.0 mi

Top 28%
×5story building
+23ft-63ft

Overall

7385

Females

1327

F18-39

1327

23M→24M

23.0 - 24.0 mi

Top 26%
×6story building
+12ft-82ft

Overall

6967

Females

1262

F18-39

1262

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

6788

Females

1273

F18-39

1273

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

6968

Females

1391

F18-39

1391

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2story building
+22ft-21ft

Overall

7757

Females

1717

F18-39

1717

Passing Analysis

Category:
Athletes Passed
1970
Passed By
717
Net Change
+1253
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9158
5K → 10K348199+149#9158#9009
10K → 15K21985+134#9009#8875
15K → 20K21344+169#8875#8706
20K → Half4912+37#8706#8669
Half → 25K14428+116#8669#8553
25K → 30K194137+57#8553#8496
30K → 20M11349+64#8496#8432
20M → 21M13919+120#8432#8312
21M → 35K1025+97#8312#8215
35K → 23M12134+87#8215#8128
23M → 24M10926+83#8128#8045
24M → 40K10319+84#8045#7961
40K → 25.2M4411+33#7961#7928
25.2M → Finish7249+23#7928#7905
TOTALS1970717+1253
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing